My device gets hot and the game crashes

Dear Community

I have the problem that my game always crashes. Not right at the beginning of the game and not with a certain function.

The device I’m playing on also gets extremely warm and at some point the game crashes.

I have a lot of variables in it, as it is a manager game. Could this be a problem?

I have absolutely no idea and would be grateful for any input.
The game can be downloaded here:

Wrestling Manager Mobile – Apps bei Google Play