A. 1. Check credentials: Ensure that you are entering the correct username and password. If you have forgotten your password, use the 'Forgot Password' option to reset it.
2. Restart the app: Close the app completely and reopen it to refresh the authentication process.
3. Check internet connection: Ensure you have a stable internet connection, as poor connectivity can lead to authentication issues.
B. 4. Update the app: Make sure you are using the latest version of the app, as updates may resolve authentication problems.