GuzzleHttp Problem

apps/richdocumentscode/proxy.php?req=/hosting/capabilitiesresulted in a404 Not Found` response: 404 Not Found

Not Found (truncated…)

You’ll need to provide more context about your setup and what steps you’ve taken for each your current point

It appears you don’t have the richdocumentscode app installed, but it could also be numerous other things - like a way outside web server config.

The nextcloud installed during my ubuntu 22.04 installation, I think its under snap

Okay, but are you trying to do something when this error occurs?

What are the steps to reproduce?

I have no idea, still try to search for the solution.