I got this crash while I was getting attacked:

The mod Time Changer (1.0.0) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event time-changer::on_entity_damaged (ID 111)
time-changer/control.lua:63: attempt to index field 'cause' (a nil value)
stack traceback:
time-changer/control.lua:63: in function <time-changer/control.lua:61>

Similar, getting that error when i hit a car into a tree or the like

It crashed while at 1x speed when I crashed into a tree in Pyanodon hard mode.