The only difference with my other games is the image format. So the problem probably comes from this and so my next game should work on your phone. About the fact that you paid, you can:
- ask me the code for a different game, even the coming one, and I’ll mail it to you (my games are https://kk2oven.itch.io/ )
- send a mail to itch.io to get a refund
- wait a little and hope that I fix the issue with the APK (I can’t guarantee it will work)