Internal server error (only System)


I hope you can help me, I have already searched the internet, but unfortunately I did not find a concrete answer.

My Nextcloud runs without any problems, but when I click on the tab under settings on “System”, I always get the following error message

Internal server error

The server could not complete the request.

If this happens again, please send the technical details below to your server administrator.

More details can be found in the server log.

Technical details

Remote address: MyIP
I already looked in the logs, but I can’t explain why this error appears under the “System” tab. As I said everything else works fine.

My System

Dedicated Server
16x cores 64GB DDR4
Linux Debian x64 with Plesk Web Admin Edition
php version 8.0.12
Nextcloud version: 22.2.0

I uploaded the log to Pastebin (for the sake of length).

I hope someone can help me, because I want everything to work smoothly and reliably. I would be really grateful.