A. 1. Backup your account: Before updating the app, ensure you have backed up your account information, if possible. Check if the app has a cloud save feature. 2. Re-login after update: If your account is deleted, try logging back in with your credentials. Sometimes, accounts may appear missing due to a temporary glitch.

B. 3. Check for multiple accounts: Ensure you are logging into the correct account, as updates may sometimes default to a different account.