The game seems decent for what little I've been able to play but it just keeps crashing randomly. I'm playing on the android version. No clue what the problem could be or what I could do about it.
Hard crashes/freezes like that, are usually problems with the phone's specific hardware/software, struggling to run the game.
The only suggestions I have, is making sure your Android OS is up to date/your phone has enough free memory available to run the game.
Sorry, but there's not much I can do about it besides that.