during the instructions when a sphere falls, this error appears and you can't continue:############################################################################################
FATAL ERROR in
action number 1
of Step Event0
for object obj_intro_stage:
Push :: Execution Error - Variable Index [0,4] out of range [1,4] - -1.text(100122,4)
at gml_Object_obj_intro_stage_Step_0
############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Object_obj_intro_stage_Step_0 (line -1)