Hi, I got this error after pressing ctrl z to undo the removal of a ghost

Die Mod Damage Effect (DEMO) (0.1.1) hat einen Fehler verursacht, der nicht behoben werden kann.
Bitte informiere den Autor der Mod über diesen Fehler.

Error while running event damage_effect::on_tick (ID 0)
damage_effect/data/effects.lua:219: attempt to compare nil with number
stack traceback:
damage_effect/data/effects.lua:219: in function 'run_tick'
damage_effect/data/effects.lua:409: in function <damage_effect/data/effects.lua:408>

hi, I must have probably solved this problem

thanks for reporting