Issue Docker log return 500 Internal Server Error

[B3 Support]

Server operating system version

Ubuntu 20.04.6 LTS (GNU/Linux 5.4.0-163-generic x86_64)

Plesk version and microupdate number

Plesk Obsidian 18.0.59.0

We have installed the free version of the "Docker" extension on our server. Exactly one container (Elastic Agent) is currently running there. However, Plesk has been generating a 500 error for some time now.

I have tried to find out if there is any further information in the LOG files. Unfortunately, I don't know in which LOG these errors are written.
However, when we created the container about 1.5 months ago, it definitely worked.