A. 1. Check your internet connection to ensure it is stable. 2. Clear the app cache by going to Settings > Apps > SafeUM > Storage > Clear Cache. 3. If the issue persists, try uninstalling and reinstalling the app to reset any corrupted data.
B. 4. Ensure that your username and password are entered correctly, paying attention to case sensitivity. 5. If you have recently changed your password, make sure to use the updated one.