Doesn’t Work

I played one game once a while ago, and I still am not able to start a new game. Every time I open it to try it again, it is still stuck on checkmate from months ago. I tried closing the app, also updating it, but neither has worked. I have never had this kind of probalem with an app before, and nothing like this has happened with any of my other apps since this one started acting up.

TimeCop24 about Chess Deluxe, vV1.00