Please check (and possibly update) your sound drivers.
few days ago update was released so i updated it(before this issue appeared),my sound-card is Realtek
well...today i played and the trainer worked fine,i even exit the game few times and activate it again,this issue somehow resolved by itself 😵 and i hope it won't appear again
thanks for everyone who replied and tried to help me,god bless you!
have a nice day,more power CH!