I cant update the game

What happened:
I had FC Mobile installed and working perfectly on this exact device. Yesterday I deleted the app, and today when I try to reinstall it from the Google Play Store, it shows "This app is not compatible with your device."

Nothing about my device has changed since it last worked.
Could you please check the compatibility manifest for the Oppo a77s and let me know if this can be corrected, or advise on how I can reinstall the game?