new install of starter kit will not run sample flow because of security hiccup

[Bazmundi]

Below is a dump of the console from pulling down the starter kit to running and then using chat prompt. That it all seems good until you open the sample flow and use chat prompt. I security error ctops up:

Error in sub-node ‘Ollama Chat Model‘
Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.

I had edited .env with secrets etc and set db password prior to starting.

Running on ubuntu 22.04.5.

I just grabbed 256-bit WEP Keys "secrets" from https://randomkeygen.com/ and made up a password for db etc.
Error in sub-node ‘Ollama Chat Model‘
Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
There's also a couple of deprecation warnings that I am not expecting if I'm pull "latest" etc from source.

Any "help" on this matter seems to want you to check ~/.n8n/config or /home/node/ etc. neither of which is actually setup un using the docker install.

Is there a known fix please?

In the credentils tab, I found qdrant and ollama needing "credentials". Qdrant appeared to be fixed by putting the url for the service into the tab, which I would have expected was prefilled out since the setup would have "known" that since qdrant comes with.

The problem with Ollama seems to be a refusal to connect. I tried both localhost and 127.0.0.1 etc. If I try http://localhost:11434/ from another browser I get "Ollama is running" so its running just refusing connection.

With "fix" to qdrant "credentials" the error changes to:

Problem in node ‘Basic LLM Chain‘

fetch failed

Dump from install to "fetch failed" below:

asterion@MonstaPC:~/AI/self-hosted-ai-starter-kit$ docker container ls -a
CONTAINER ID   IMAGE     COMMAND   CREATED   STATUS    PORTS     NAMES
(base) asterion@MonstaPC:~/AI/self-hosted-ai-starter-kit$ docker compose --profile gpu-nvidia up
[+] Running 40/40
 ✔ qdrant Pulled                                                                                                                                                                                            142.7s Problem in node ‘Basic LLM Chain‘

fetch failed
   ✔ 8c7716127147 Pull complete                                                                                                                                                                              86.0s 
   ✔ 7d870fd66ece Pull complete                                                                                                                                                                              88.2s 
   ✔ 0641a714b018 Pull complete                                                                                                                                                                             136.7s 
   ✔ 7c6ccda58d7a Pull complete                                                                                                                                                                             136.8s 
   ✔ ab5cf6b93de6 Pull complete                                                                                                                                                                             136.9s 
   ✔ 736b7f8a757c Pull complete                                                                                                                                                                             137.0s 
   ✔ 6fc04e638788 Pull complete                                                                                                                                                                             137.1s 
 ✔ n8n-import Pulled                                                                                                                                                                                        193.2s 
   ✔ 9824c27679d3 Already exists                                                                                                                                                                              0.0s 
   ✔ 6a088b2daae0 Pull complete                                                                                                                                                                              66.1s 
   ✔ 52719e552fdf Pull complete                                                                                                                                                                              66.2s 
   ✔ 016c0e952111 Pull complete                                                                                                                                                                              66.2s 
   ✔ 396ba7995277 Pull complete                                                                                                                                                                              66.7s 
   ✔ 4f4fb700ef54 Pull complete                                                                                                                                                                              88.3s 
   ✔ 7de3a8099ea1 Pull complete                                                                                                                                                                             188.7s 
   ✔ 122724a01aeb Pull complete                                                                                                                                                                             188.9s 
   ✔ e7d871d0d21c Pull complete                                                                                                                                                                             188.9s 
   ✔ 451263161295 Pull complete                                                                                                                                                                             189.0s 
   ✔ 3408ff1f6b48 Pull complete                                                                                                                            Problem in node ‘Basic LLM Chain‘

fetch failedProblem in node ‘Basic LLM Chain‘

fetch failed                                                 189.1s 
   ✔ 3fe772b1836d Pull complete                                                                                                                                                                             189.4s 
 ✔ ollama-pull-llama-gpu Pulled                                                                                                                                                                             975.0s 
 ✔ ollama-gpu Pulled                                                                                                                                                                                        975.0s 
   ✔ 4b3ffd8ccb52 Pull complete                                                                                                                                                                             123.4s 
   ✔ 98bf6a5ec929 Pull complete                                                                                                                                                                             125.1s 
   ✔ 33494fde5d21 Pull complete                                                                                                                                                                             134.9s 
   ✔ 83ea82cf2566 Pull complete                                                                                                                                                                             969.4s 
 ✔ postgres Pulled                                                                                                                                                                                          258.0s 
   ✔ 2d35ebdb57d9 Pull complete                                                                                                                                                                             139.4s 
   ✔ cb12d8d02c19 Pull complete                                                                                                                                                                             141.0s 
   ✔ c096dc07967e Pull complete                                                                                                                                                                             142.9s 
   ✔ d3654297bda3 Pull complete                                                                                                                                                                             144.2s 
   ✔ 5be20dc47298 Pull complete                                                                                                                                                                             145.5s 
   ✔ bf5d155c40a7 Pull complete                                                                                                                                                                             251.0s 
   ✔ d29e13a2aece Pull complete                                                                                                                                                                             251.0s 
   ✔ 90693fb5a6be Pull complete                                                                                                                                                                             251.1s 
   ✔ a0e3da949ee5 Pull complete                                                                                                                                                                             251.2s 
   ✔ 8f1d922bde53 Pull complete                                                                                                                                                                             251.2s 
   ✔ 8532eda074db Pull complete                                                                                                                                                                             251.3s 
 ✔ n8n Pulled                                                                                                                                                                                               193.2s 
[+] Running 6/6
 ✔ Container self-hosted-ai-starter-kit-postgres-1  Created                                                                                                                                                   1.0s 
 ✔ Container qdrant                                 Created                                                                                                                                                   1.0s 
 ✔ Container ollama                                 Created                                                                                                                                                   1.0s 
 ✔ Container n8n-import                             Created                                                                                              Problem in node ‘Basic LLM Chain‘

fetch failed                                                     0.3s 
 ✔ Container ollama-pull-llama                      Created                                                                                                                                                   0.2s 
 ✔ Container n8n                                    Created                                                                                                                                                   0.1s 
Attaching to n8n, n8n-import, ollama, ollama-pull-llama, qdrant, postgres-1
qdrant  |            _                 _    
qdrant  |   __ _  __| |_ __ __ _ _ __ | |_  
qdrant  |  / _` |/ _` | '__/ _` | '_ \| __| 
qdrant  | | (_| | (_| | | | (_| | | | | |_  
qdrant  |  \__, |\__,_|_|  \__,_|_| |_|\__| 
qdrant  |     |_|                           
qdrant  | 
qdrant  | Version: 1.15.5, build: 48203e41
qdrant  | Access web UI at http://localhost:6333/dashboard
qdrant  | 
qdrant  | 2025-10-12T02:48:22.737403Z  INFO storage::content_manager::consensus::persistent: Loading raft state from ./storage/raft_state.json
qdrant  | 2025-10-12T02:48:22.741089Z  INFO qdrant: Distributed mode disabled
qdrant  | 2025-10-12T02:48:22.741113Z  INFO qdrant: Telemetry reporting enabled, id: c3a9a49f-c27c-4948-820b-a513e4a565da
qdrant  | 2025-10-12T02:48:22.751248Z  INFO qdrant::tonic: Qdrant gRPC listening on 6334
qdrant  | 2025-10-12T02:48:22.751258Z  INFO qdrant::tonic: TLS disabled for gRPC API
qdrant  | 2025-10-12T02:48:22.751727Z  INFO qdrant::actix: TLS disabled for REST API
qdrant  | 2025-10-12T02:48:22.751775Z  INFO qdrant::actix: Qdrant HTTP listening on 6333
qdrant  | 2025-10-12T02:48:22.751785Z  INFO actix_server::builder: starting 31 workers
qdrant  | 2025-10-12T02:48:22.751793Z  INFO actix_server::server: Actix runtime found; starting in Actix runtime
qdrant  | 2025-10-12T02:48:22.751796Z  INFO actix_server::server: starting service: "actix-web-service-0.0.0.0:6333", workers: 31, listening on: 0.0.0.0:6333
postgres-1  | 
postgres-1  | PostgreSQL Database directory appears to contain a database; Skipping initialization
postgres-1  | 
postgres-1  | 2025-10-12 02:48:22.814 UTC [1] LOG:  starting PostgreSQL 16.10 on x86_64-pc-linux-musl, compiled by gcc (Alpine 14.2.0) 14.2.0, 64-bit
postgres-1  | 2025-10-12 02:48:22.814 UTC [1] LOG:  listening on IPv4 address "0.0.0.0", port 5432
postgres-1  | 2025-10-12 02:48:22.814 UTC [1] LOG:  listening on IPv6 address "::", port 5432
postgres-1  | 2025-10-12 02:48:22.836 UTC [1] LOG:  listening on Unix socket "/var/run/postgresql/.s.PGSQL.Problem in node ‘Basic LLM Chain‘

fetch failed5432"
postgres-1  | 2025-10-12 02:48:22.857 UTC [29] LOG:  database system was shut down at 2025-10-12 01:55:15 UTC
postgres-1  | 2025-10-12 02:48:22.870 UTC [1] LOG:  database system is ready to accept connections
ollama      | time=2025-10-12T02:48:22.963Z level=INFO source=routes.go:1481 msg="server config" env="map[CUDA_VISIBLE_DEVICES: GPU_DEVICE_ORDINAL: HIP_VISIBLE_DEVICES: HSA_OVERRIDE_GFX_VERSION: HTTPS_PROXY: HTTP_PROXY: NO_PROXY: OLLAMA_CONTEXT_LENGTH:4096 OLLAMA_DEBUG:INFO OLLAMA_FLASH_ATTENTION:false OLLAMA_GPU_OVERHEAD:0 OLLAMA_HOST:http://0.0.0.0:11434 OLLAMA_INTEL_GPU:false OLLAMA_KEEP_ALIVE:5m0s OLLAMA_KV_CACHE_TYPE: OLLAMA_LLM_LIBRARY: OLLAMA_LOAD_TIMEOUT:5m0s OLLAMA_MAX_LOADED_MODELS:0 OLLAMA_MAX_QUEUE:512 OLLAMA_MODELS:/root/.ollama/models OLLAMA_MULTIUSER_CACHE:false OLLAMA_NEW_ENGINE:false OLLAMA_NOHISTORY:false OLLAMA_NOPRUNE:false OLLAMA_NUM_PARALLEL:1 OLLAMA_ORIGINS:[http://localhost https://localhost http://localhost:* https://localhost:* http://127.0.0.1 https://127.0.0.1 http://127.0.0.1:* https://127.0.0.1:* http://0.0.0.0 https://0.0.0.0 http://0.0.0.0:* https://0.0.0.0:* app://* file://* tauri://* vscode-webview://* vscode-file://*] OLLAMA_REMOTES:[ollama.com] OLLAMA_SCHED_SPREAD:false ROCR_VISIBLE_DEVICES: http_proxy: https_proxy: no_proxy:]"
ollama      | time=2025-10-12T02:48:22.963Z level=INFO source=images.go:522 msg="total blobs: 6"
ollama      | time=2025-10-12T02:48:22.963Z level=INFO source=images.go:529 msg="total unused blobs removed: 0"
ollama      | time=2025-10-12T02:48:22.963Z level=INFO source=routes.go:1534 msg="Listening on [::]:11434 (version 0.12.5)"
ollama      | time=2025-10-12T02:48:22.964Z level=INFO source=runner.go:80 msg="discovering available GPUs..."
ollama      | time=2025-10-12T02:48:23.561Z level=INFO source=types.go:112 msg="inference compute" id=GPU-322800bc-4d7c-7c62-e97c-c005d43cdba4 library=CUDA compute=8.9 name=CUDA0 description="NVIDIA GeForce RTX 4080" libdirs=ollama,cuda_v12 driver=12.8 pci_id=0c:00.0 type=discrete total="15.6 GiB" available="14.9 GiB"
ollama      | time=2025-10-12T02:48:23.561Z level=INFO source=routes.go:1575 msg="entering low vram mode" "total vram"="15.6 GiB" threshold="20.0 GiB"
ollama      | [GIN] 2025/10/12 - 02:48:26 | 200 |      51.232µs |      172.20.0.5 | HEAD     "/"
ollama      | [GIN] 2025/10/12 - 02:48:27 | 200 |  1.055159928s |      172.20.0.5 | POST     "/api/pull"
pulling manifest 
ollama-pull-llama  | pulling dde5aa3fc5ff: 100% ▕██████████████████▏ 2.0 GB                         
ollama-pull-llama  | pulling 966de95ca8a6: 100% ▕██████████████████▏ 1.4 KB                         
ollama-pull-llama  | pulling fcc5a6bec9da: 100% ▕██████████████████▏ 7.7 KB                         
ollama-pull-llama  | pulling a70ff7e570d9: 100% ▕██████████████████▏ 6.0 KB                         
ollama-pull-llama  | pulling 56bb8bd477a5: 100% ▕██████████████████▏   96 B                         
ollama-pull-llama  | pulling 34bb5ab01051: 100% ▕██████████████████▏  561 B                         Problem in node ‘Basic LLM Chain‘

fetch failedProblem in node ‘Basic LLM Chain‘

fetch failed
ollama-pull-llama  | verifying sha256 digest 
ollama-pull-llama  | writing manifest 
ollama-pull-llama  | success 
ollama-pull-llama exited with code 0
n8n-import         | Permissions 0644 for n8n settings file /home/node/.n8n/config are too wide. This is ignored for now, but in the future n8n will attempt to change the permissions automatically. To automatically enforce correct permissions now set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true (recommended), or turn this check off set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=false.
n8n-import         | Migrations in progress, please do NOT stop the process.
n8n-import         | Starting migration AddTimestampsToRoleAndRoleIndexes1756906557570
n8n-import         | Finished migration AddTimestampsToRoleAndRoleIndexes1756906557570
n8n-import         | Successfully imported 2 credentials.
n8n-import         | Permissions 0644 for n8n settings file /home/node/.n8n/config are too wide. This is ignored for now, but in the future n8n will attempt to change the permissions automatically. To automatically enforce correct permissions now set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true (recommended), or turn this check off set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=false.
n8n-import         | Importing 1 workflows...
n8n-import         | Successfully imported 1 workflow.
n8n-import exited with code 0
n8n                | Permissions 0644 for n8n settings file /home/node/.n8n/config are too wide. This is ignored for now, but in the future n8n will attempt to change the permissions automatically. To automatically enforce correct permissions now set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=true (recommended), or turn this check off set N8N_ENFORCE_SETTINGS_FILE_PERMISSIONS=false.
n8n                | Initializing n8n process
n8n                | n8n ready on ::, port 5678
n8n                | 
n8n                | There are deprecations related to your environment variables. Please take the recommended actions to update your configuration:
n8n                |  - N8N_RUNNERS_ENABLED -> Running n8n without task runners is deprecated. Task runners will be turned on by default in a future version. Please set `N8N_RUNNERS_ENABLED=true` to enable task runners now and avoid potential issues in the future. Learn more: https://docs.n8n.io/hosting/configuration/task-runners/
n8n                |  - N8N_BLOCK_ENV_ACCESS_IN_NODE -> The default value of N8N_BLOCK_ENV_ACCESS_IN_NODE will be changed from false to true in a future version. If you need to access environment variables from the Code Node or from expressions, please set N8N_BLOCK_ENV_ACCESS_IN_NODE=false. Learn more: https://docs.n8n.io/hosting/configuration/environment-variables/security/
n8n                |  - N8N_GIT_NODE_DISABLE_BARE_REPOS -> Support for bare repositories in the Git Node will be removed in a future version due to security concerns. If you are not using bare repositories in the Git Node, please set N8N_GIT_NODE_DISABLE_BARE_REPOS=true. Learn more: https://docs.n8n.io/hosting/configuration/environment-variables/security/
n8n                | 
n8n                | [license SDK] Skipping renewal on init: license cert is not initialized
n8n                | Version: 1.114.4
n8n                | 
n8n                | Editor is now accessible via:
n8n                | http://localhost:5678
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" wProblem in node ‘Basic LLM Chain‘

fetch failedas used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
postgres-1         | 2025-10-12 02:53:22.865 UTC [27] LOG:  checkpoint starting: time
postgres-1         | 2025-10-12 02:53:28.165 UTC [27] LOG:  checkpoint complete: wrote 55 buffers (0.3%); 0 WAL file(s) added, 0 removed, 0 recycled; write=5.231 s, sync=0.032 s, total=5.301 s; sync files=49, longest=0.007 s, average=0.001 s; distance=149 kB, estimate=149 kB; lsn=0/1CC19B0, redo lsn=0/1CC1978
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsService.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:591:25)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:125:6)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsController.testCredentials (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:151:49)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | The service refused the connection - perhaps it is offline
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsService.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:591:25)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:125:6)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
postgres-1         | 2025-10-12 03:08:22.369 UTC [27] LOG:  checkpoint starting: time
postgres-1         | 2025-10-12 03:08:22.520 UTC [27] LOG:  checkpoint complete: wrote 2 buffers (0.0%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.107 s, sync=0.009 s, total=0.152 s; sync files=2, longest=0.007 s, average=0.005 s; distance=2 kB, estimate=134 kB; lsn=0/1CC25A0, redo lsn=0/1CC2568
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsController.updateCredentials (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:231:49)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Invalid URL
postgres-1         | 2025-10-12 03:13:22.574 UTC [27] LOG:  checkpoint starting: time
postgres-1         | 2025-10-12 03:13:22.726 UTC [27] LOG:  checkpoint complete: wrote 2 buffers (0.0%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.107 s, sync=0.010 s, total=0.152 s; sync files=2, longest=0.008 s, average=0.005 s; distance=2 kB, estimate=121 kB; lsn=0/1CC3170, redo lsn=0/1CC3138
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Invalid URL
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at /usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:155:65
n8n                |     at Array.map (<anonymous>)
n8n                |     at CredentialsService.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:154:31)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getMany (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:72:23)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsService.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:591:25)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at CredentialsController.getOne (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:125:6)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsController.testCredentials (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:151:49)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | The service refused the connection - perhaps it is offline
ollama             | [GIN] 2025/10/12 - 03:14:18 | 200 |      35.852µs |      172.20.0.1 | GET      "/"
ollama             | [GIN] 2025/10/12 - 03:14:18 | 404 |        4.91µs |      172.20.0.1 | GET      "/favicon.ico"
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsController.testCredentials (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:151:49)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | The service refused the connection - perhaps it is offline
n8n                | Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                | Error: Credentials could not be decrypted. The likely reason is that a different "encryptionKey" was used to encrypt the data.
n8n                |     at Credentials.getData (/usr/local/lib/node_modules/n8n/node_modules/.pnpm/n8n-core@file+packages+core_@[email protected]_@[email protected]_08b575bec2313d5d8a4cc75358971443/node_modules/n8n-core/src/credentials.ts:57:10)
n8n                |     at CredentialsService.decrypt (/usr/local/lib/node_modules/n8n/src/credentials/credentials.service.ts:368:32)
n8n                |     at CredentialsController.updateCredentials (/usr/local/lib/node_modules/n8n/src/credentials/credentials.controller.ts:231:49)
n8n                |     at processTicksAndRejections (node:internal/process/task_queues:105:5)
n8n                |     at handler (/usr/local/lib/node_modules/n8n/src/controller.registry.ts:79:12)
n8n                |     at /usr/local/lib/node_modules/n8n/src/response-helper.ts:157:17
n8n                | 
n8n                | error:1C800064:Provider routines::bad decrypt
n8n                | The service refused the connection - perhaps it is offline
n8n                | The service refused the connection - perhaps it is offline
n8n                | Invalid URL
postgres-1         | 2025-10-12 03:18:22.826 UTC [27] LOG:  checkpoint starting: time
postgres-1         | 2025-10-12 03:18:24.290 UTC [27] LOG:  checkpoint complete: wrote 15 buffers (0.1%); 0 WAL file(s) added, 0 removed, 0 recycled; write=1.409 s, sync=0.021 s, total=1.465 s; sync files=14, longest=0.015 s, average=0.002 s; distance=36 kB, estimate=113 kB; lsn=0/1CCC510, redo lsn=0/1CCC4D8
n8n                | The service refused the connection - perhaps it is offline
n8n                | The service refused the connection - perhaps it is offline
n8n                | The service refused the connection - perhaps it is offline
n8n                | (node:7) [DEP0123] DeprecationWarning: Setting the TLS ServerName to an IP address is not permitted by RFC 6066. This will be ignored in a future version.
n8n                | (Use `node --trace-deprecation ...` to show where the warning was created)
n8n                | The service refused the connection - perhaps it is offline
n8n                | The service refused the connection - perhaps it is offline
n8n                | The service refused the connection - perhaps it is offline
n8n                | Invalid URL
postgres-1         | 2025-10-12 03:23:22.387 UTC [27] LOG:  checkpoint starting: time
postgres-1         | 2025-10-12 03:23:22.550 UTC [27] LOG:  checkpoint complete: wrote 2 buffers (0.0%); 0 WAL file(s) added, 0 removed, 0 recycled; write=0.107 s, sync=0.011 s, total=0.163 s; sync files=2, longest=0.009 s, average=0.006 s; distance=3 kB, estimate=102 kB; lsn=0/1CCD268, redo lsn=0/1CCD230

[jeanpaul]

Hi, this seems to be an issue with your environment variables. Did you, by chance, change your .env file, including the N8N_ENCRYPTION_KEY? If you change that, it will not load the old credentials for you, as they will have been encrypted with the old encryption key.

However, the credentials should not be hard to recreate (ollama doesn't have an API key set, for example, and the host is ollama:11434). Please let me know if you managed to connect to your ollama using your own credentials!

[Bazmundi]

"did you change .env" is a odd question, since the setup guide actually directs you do do exactly that and change out the default keys with actual keys since it literally says:

https://github.com/n8n-io/self-hosted-ai-starter-kit?tab=readme-ov-file#cloning-the-repository

git clone https://github.com/n8n-io/self-hosted-ai-starter-kit.git
cd self-hosted-ai-starter-kit
cp .env.example .env # you should update secrets and passwords inside

Noting the keys have naught to do with the ollama hosted in the docker setup.

So, it likely has to be a problem in the docker-compose file setup since I am simply starting the system with the docker compose up and it's not finding it's own internal ollama container.

[Bazmundi]

Gave up. Langflow has simpler setup that just works.