Error with Ender 3

Hi
Can someone help please
Just purchased a v3 se and I keep getting error “does not support multi plate printing “
Any help would be appreciated

Have you added extra plates, its the button beside the import model? You should simply be able to press the ‘X’ in the top right of the extra plate(s) or go back to version 4.3.8 and not have extra plates.

No extra plates added
Will follow your instructions and see what happens
Thankyou