Nextcloud 13 Internal Server Error Update

Hello, everyone,

I have a Nextcloud 12. running on my rasbian and wanted to update to 13.
Disabled all apps before.
I get the message after that

Internal Server Error

The server encountered an internal error and was unable to complete your request.
Please contact the server administrator if this error reappears multiple times, please include the technical details below in your report.
More details can be found in the server log.

Here I uploaded the nextcloud log:

Can somebody help me?
Greeting Lockslay