Observed behaviour

server fails to load, and client fails to load. Everything works fine when I revert the mod version back to 3.7.1

Expected behaviour

Expected the newest release to work

Steps to reproduce

1. Install the latest iron spell mod version.
2. crash

Server Type

Dedicated Server

Crashlog

CRASHLOG FOR CLIENT: https://pastebin.com/g4UF2jDJ //////// CRASHLOG FOR SERVER: https://pastebin.com/P41kyRDv

Iron's Spells N Spellbooks version

v1.21-3.8.0

Forge version

1.21.1

Other mods

No response

ive fixed the dedicated server issue. i cannot reproduce the client issue. if it persists after 3.8.1, please make a separate issue for it