If your Outlook is displaying the Working Offline message, here are some steps to fix it:

1. Check your internet connection and ensure it's stable.
2. Go to the "Send/Receive" tab and click "Work Offline" to disable it.
3. Restart Outlook and see if the issue persists.
4. Verify that your email account settings are correct.
5. Disable any third-party add-ins that may be causing conflicts.
6. Update Outlook to the latest version.

Remember to follow these steps to resolve the Working Offline error in Outlook.