I have two crash logs, couldn't find a way to submit them any other way.
The first is from using the Lightning spell in the Amalthea fight, easy to reproduce:
############################################################################################
ERROR in
action number 1
of Step Event0
for object EB_UI:
unable to convert string "" to int64
at gml_Script_EB_SkillUser
############################################################################################
gml_Script_EB_SkillUser (line -1)
gml_Script_EB_AllyMoves
gml_Object_EB_UI_Step_0
The second happened in the Metroid-like section, Either defeating a foe immediately as a gate opened, or opening the gate as the foe was walking on the gate, I'm not sure which event happened first:
############################################################################################
ERROR in
action number 1
of Step Event0
for object ME_Amogus:
Unable to find instance for object index 118674
at gml_Object_ME_Amogus_Step_0
############################################################################################
gml_Object_ME_Amogus_Step_0 (line -1)