Hi! Thank you for checking out our game! We haven't encountered this issue before. To install a Ren'Py game on Android, you need to install the APK and download the necessary files through it. If you're experiencing issues, it could be due to insufficient storage on your device or not enabling downloads from unknown sources.
To enable this, go to the Settings app, tap Security, check Unknown Sources, tap OK on the prompt message, and select Trust.
Please let us know if you're encountering a different issue. We hope you enjoy the game!