Observed behaviour

launch pack as normal, tried fresh install, tried graphics driver updates, computer restart. I know this should be working as the server i am trying to join, to my knowledge, does not have this problem.

Expected behaviour

it should just work and not crash before the pack launches

Steps to reproduce

1. launch the pack on its most current version:
   atm9-0.3.2

Server Type

Dedicated Server

Crashlog

https://gist.github.com/893203/412917c06ceadb42014ebe3edf3bad3b

Iron's Spells N Spellbooks version

1.20.1-3.4.0

Forge version

47.3.7

Other mods

there are a lot of other mods, around 400 in the modpack.

this is caused by pufferfish_unofficial_additions, not spellbooks

thanks