i created a script for a countdown Timer which works perfectly fine , when it done it will show a screen (a victory screen) cuz im working on a chess game project ,my probleme is i want to stop the timer when i make a move ( i only have one timer for the moment , the timer is running until the white team makes a move then it should stop and the timer for the black team start )

this is my Timer Script :enter image description hereenter image description here
and this is my chessBoard script : ( i added a public Timer timer; )
enter image description hereenter image description hereenter image description here

please i need help as soon as possible ….