Apparently it crashes, from what another forum says mixins are causing my game to crash.
It also mentions a ticking entity error with a quartz item, so maybe a quartz incompatibility ?

Please post a crash log. I can't do anything with so little information.

Oh right, sorry, forgot about it. Here it is
crash-2022-08-25_20.47.33-server.txt
:

The crash happened when a minecart was broken (chest minecarts from abandoned mineshafts get broken all the time during world generation). A fix for the issue will be in 2.1.10.2

Alright thanks !