Please follow the below steps:
1. Check the version of the game. Be sure to download the latest version of the game in Google Play.
2. Clear the game's data: Settings>Apps>See All Apps. In the game app go to Storage & Cache>Clear Storage and Clear Cache. It is not recommended for single-player games.
3. Upgrade to the latest software version or back up important data, and restore to factory settings.
If the issue persists, contact the Nothing Support Team for further assistance.