___________________________________________
ERROR in
action number 1
of Create Event
for object obj_player:

Error in code at line 3:
item4=item_sprite(obj_inventory.cell_sprite[global.mouserot])
^
at position 53: Unknown variable mouserot

___________________________________________
ERROR in
action number 1
of Draw Event
for object obj_player:

Error in code at line 2:
draw_sprite_ext(spr_part3,movedir,x,y+8,1,1,dir3,c_white,1)
^
at position 46: Unknown variable dir3

Переменная dir3 - создана в obj_player

___________________________________________
ERROR in
action number 1
of Create Event
for object obj_player:

Error in code at line 3:
item4=item_sprite(obj_inventory.cell_sprite[global.mouserot])
^
at position 53: Unknown variable mouserot

___________________________________________
ERROR in
action number 1
of Draw Event
for object obj_player:

Error in code at line 2:
draw_sprite_ext(spr_part3,movedir,x,y+8,1,1,dir3,c_white,1)
^
at position 46: Unknown variable dir3

___________________________________________
ERROR in
action number 1
of Draw Event
for object obj_player:

Error in code at line 4:
if trunk!=0 {draw_sprite(trunk,movedir,x,y-2)}
^
at position 5: Unknown variable trunk

Тоже создана в этом же объекте

Убрал лишние скрипты, и всё заработало!