hey! i'm so sorry to hear you're having this issue :(
have you touched any of the files and moved them around? that might be why it's happening!
if you haven't, please try downloading the game again!
(this seems to be mobile UI though ^^; the game isn't built to run on phone, which would be the main reason why it's not executing properly. i'm so sorry for the issue, but there's not much i can do about that right now T__T)