Restart your Device: Restarting your device refreshes it and might resolve any memory issues that can cause the game to freeze. This won’t cause any data loss.
Reset the Game: Resetting the game might also resolve freezing issues. By resetting the game you ensure you have the latest updates. You can also check the App Store for any updates.
Update your device software: Lastly, make sure that your mobile device's software is always updated. Outdated software might also cause games and apps to freeze.