To troubleshoot a phone that is not connecting to a specific app or game, try the following steps:

1. Restart the phone
2. Check the time and date settings on your device
3. Sign out of the app/game, and back again
4. Clear the app cache
5. Check the app/game for available updates
6. Update app permissions
7. Check your mobile data/wifi connection settings
8. Deactivate your account and reactivate it
9. Uninstall and reinstall the app/game