tavern brawl error

pc v1.2.1

was in tavern brawl and had dragon queen on my team but all of her stuff was disabled, which is what the update said would happen but all of my creatures spells and attacks were doing 0 damage but the enemy didnt have anything to prevent damage and then i got this error massage

FATAL ERROR in
action number 1
of Step Event0
for object obj_battlecontroller:

Variable obj_battlecontroller.item(100080, -2147483648) not set before reading it.
at gml_Script_scr_BrawlCreatureIsBanned
############################################################################################

stack frame is
gml_Script_scr_BrawlCreatureIsBanned (line -1)
gml_Script_scr_CritHasPassive
gml_Script_bc_OnDeath
gml_Script_bc_ExecuteEvents
gml_Object_obj_battlecontroller_Step_0