Mod Loader (Required)

Fabric

Minecraft Version(s) (Required)

1.21.5

Mod Version(s) (Required)

v.21.5.0

Minimal Setup

No

Notes (Required)

1. enabled mutant monster and launch with 146 other mods including lithium = game crashed
2. disabled mutant monster and launch with 146 other mods including lithium= normal
3. disabled lithium and launch with 146 other mods including mutant monster = normal
4. launch with only mutant monster and it dependencies (4 mods) = normal
5. launch with only mutant monster, it dependencies, and lithium = crash

below i share the crash report and latest log of #5

Crash Report (Required)

https://gist.github.com/ptratamaa/fbd1ef8f23e560036e0a1abd7d848b8f

latest.log (Optional)

https://gist.github.com/ptratamaa/fbd1ef8f23e560036e0a1abd7d848b8f

Thank you, fixed in v21.5.1.