Hi verbfiex, dev here, which Android version do you have? Also, can you post a screenshot of that message? I'll be happy to help you!
Thanks! Below are a few options we can try to see if it fixes the problem for you, can you give it a try?
1. Have you tried installing others Android games recently? Not through Google Play, but by downloading an APK here in itch.io
2. Can you try updating Google Play Store? See link with instructions
https://support.google.com/googleplay/answer/113412
3. Can you update your phone if a new version is available?
Let me know if you try any of this and if points 2 or 3 helps to resolve the issue Thanks!