Error Updating the Game
If you encounter any issues updating the game, try the following:
Restart your device.
Increase storage memory by uninstalling apps or deleting videos/pictures you no longer need.
Clear your Google Play cache. To do so, go to the Application settings in your device and find Google Play there. Select it, then tap Clear Cache.
Delete the game and download it again from the store.
Try a different connection type (Wi-Fi, mobile data).