I bought 3 items from the shop, and spent my level up on +4 items in the shop. If it is important, I opened it before the timer resetted the shop. Crashed my game with the following message:
___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of Alarm Event for alarm 5
for object parMenu:
Push :: Execution Error - Variable Index [0,4] out of range [1,4] - 143539.inflation(100055,4)
at gml_Object_parMenu_Alarm_5
############################################################################################