I was starting up the server when it crashed it was giving me an error for a lot of different items or mobs in Quark.
Here's the list of errors:

https://pastebin.com/DgMKZBrS

This is the newest quark and autoreglib
It's on Forge 1.16.5, Forge version 36.2.0

These errors in particular aren't fatal, and are probably unrelated. Do you have a full log?