https://pastebin.com/CsyRVQrc

I found out what's causing it, its Pehkui

I believe Its a mixin issue from blueprint inject attempt

https://pastebin.com/Tbcm1p2e

[09May2022 14:59:35.680] [main/WARN] [mixin/]: @Inject(@at("HEAD")) Shift.BY=1 on blueprint.mixins.json:EntityMixin::handler$zcm000$baseTick exceeds the maximum allowed value: 0. Increase the value of maxShiftBy to suppress this warning.

Are you running Blueprint in a development environment?
Reference map 'undergarden.refmap.json' for undergarden.mixins.json could not be read. If this is a development environment you can ignore this message is mentioned in the crash report.
I also haven't seen anyone else have a crash like this, so I have a feeling something's not quite right.