What happened?

My game crashes on startup when BetterEnd is installed. It also crashes on startup when BetterNether is installed, which I reported here. I put these in separate bug reports because I actually think they're crashing for different reasons.

BetterEnd

21.0.5

BCLib

21.0.8

World Weaver

21.0.10

Fabric API

0.100.7

Fabric Loader

0.16.0

Minecraft

1.21

Relevant log output

Crash Report
https://mclo.gs/WXPCQHD

Latest.log
https://mclo.gs/QVXXIwp

Other Mods

See log files