Open WebUI 0.8.2 Crashes on Startup (Cloudron/Ubuntu 24.04) - "Function not found: autolearn" & DB Syntax Error

[firmansi]

After the latest Open WebUI update, I'm experiencing issues with the application failing to start. I've already verified that CPU, memory, and storage resources are more than sufficient.

I'm using LDAP for authentication to connect to my Cloudron instance (hosted on a separate machine). My setup includes the latest version of Cloudron running on Ubuntu 24.04.

I've been using Open WebUI on Cloudron for the past two years without any issues, but this is the first time I'm encountering this startup failure. The application consistently fails with the following error logs:

Feb 17 13:10:51 await get_all_models(
Feb 17 13:10:51 File "/app/code/backend/open_webui/utils/models.py", line 305, in get_all_models
Feb 17 13:10:51 get_function_module_from_cache(request, function_id)
Feb 17 13:10:51 File "/app/code/backend/open_webui/utils/plugin.py", line 355, in get_function_module_from_cache
Feb 17 13:10:51 raise Exception(f"Function not found: {function_id}")
Feb 17 13:10:51 Exception: Function not found: autolearn
Feb 17 13:10:51 2026-02-17T06:10:51Z
Feb 17 13:10:51 Application startup failed. Exiting.
Feb 17 13:10:55 ==> Ensure directories
Feb 17 13:10:55 ==> Copying static files
Feb 17 13:10:56 ==> Loading configuration
Feb 17 13:10:56 ==> Cleanup old ollama models
Feb 17 13:10:56 ==> Ensure NLTK_DATA directory at /app/data/nltk
Feb 17 13:10:56 ==> Setting permissions
Feb 17 13:10:56 invalid command \".
Feb 17 13:10:56 ERROR: invalid input syntax for type json
Feb 17 13:10:56 LINE 1: UPDATE config SET data= E'{"version":0,"ui":{"default_locale..."

Has anyone else experienced this issue?

[Divemasterza]

Same on my side - frontend loads, but I get a 500 in the console on the ../api/models endpoint and it stalls

[joseph]

https://github.com/open-webui/open-webui/issues/21464
https://github.com/open-webui/open-webui/pull/21476

Fix is coming

[firmansi]

So i guess anyone who reads it better wait for next update

[firmansi]

@joseph I see that Open WebUI has release 0.8.3 with bug fixes

[firmansi]

This post is deleted!