Problem to load the configpanel

Hi,

I have used the GitHub Install on Debian 11. The installer does not work (see my previous post here), therefore I manually installed the framework.

MongoDB 5.0 cannot be installed due to no AVX support of my processor on the Virtual Server, so I installed MongoDD 4.4.

When I try to login, the login works and the user is recognized, but the next message I see is:

Sorry, there was a problem loading system config. Please contact your system administrator.

Although I activated debug, I do not get any message that helps me finding the error. What can I do to see the controlpanel?