I need serious help.
Traceback:
Preparing variables...
Preparing strings...
Preparing images...
Preparing ui...
Preparing sprites...
Preparing avatars...
Preparing music...
Preparing scenes...
Preparation complete
Compiling events...
Error: Compiling "EVENT_CALL_CUSTOM_EVENT" failed with error "Error: Compiling "EVENT_IF_ACTOR_RELATIVE_TO_ACTOR" failed with error "Error: Compiling "EVENT_ACTOR_SET_SPRITE" failed with error "TypeError: Cannot read property 'size' of undefined". {"scene":"Boss Fight","scriptType":"actor","actor":"XXXXXXXXXX"}". {"scene":"Boss Fight","scriptType":"actor","actor":"XXXXXXXXXX"}". {"scene":"Boss Fight","scriptType":"actor","actor":"XXXXXXXXXX"}