Steps to Reproduce the Crash

Launch Minecraft on Neoforge-21.0.30
Jei: jei-1.21-neoforge-19.0.0.9.jar

The game does not crash if you use Neoforge-21.0.24

Mod Pack URL (Optional)

No response

Mod Pack Version (Optional)

No response

Extra Notes (Optional)

No response

Crash Report

https://pastebin.com/S7qZipbt

I am also experiencing this issue when I created a new world

I got this issue too, I can provide the crash report if its needed

Thanks for the report!
This breaking change in the NeoForge beta caused the crash in JEI: neoforged/NeoForge#1137
I have fixed the issue in the latest version: bc302a4