RE: my chatbot name fembtty stops playing checkers

she says your move
then the checker board disappears

the error is
2021-02-05 09:37:49.456 - WARNING -- SelfInterpreter:Invalid numbers for operation - - <509 #null *,a:1,c:0,p> - <357 9 a:14,c:0,p>

2021-02-05 09:37:49.458 - WARNING -- SelfInterpreter:Invalid numbers for operation - - <509 #null *,a:1,c:0,p> - <372 7 a:12,c:0,p>