A. 1. Check your credentials: Ensure that you are entering the correct email and password. If unsure, use the 'Forgot Password' option to reset it.
2. Clear app data: Go to 'Settings' > 'Apps' > 'Caffè Nero' > 'Storage' > 'Clear Data'. This will reset the app and may resolve login issues.
B. 3. Try a different device: If possible, try logging in from another device to see if the issue persists.