Being around the mining turtle from CC: Tweaked causes an instant crash.
MC 1.16.5
Supplementaries 0.17.11
CC: Tweaked 1.99.0

Issue first was spotted on a server which is running the lastest build of Mohist (868), however this issue also occurs on singleplayer - it did not occur before updating from 0.17.10.

Crash log:
crash-2021-11-29_23.08.58-server.txt

Please see:
cc-tweaked/CC-Tweaked#972

CC just updated 4h ago and tweaked their API. I'm using its API and this means it broke. downgrade cc in the mean time. I'll publish an update soon-ish

fixed