Unfortunately no one can be told what Phantom Linux OS is - you have to see it for yourself.
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If you access your Outlook.com account through the iOS Mail app, you may be repeatedly asked to enter your username and password.
Start the tool and proceed to the email repair section and add files.
Get Help has troubleshooters for classic Outlook for Windows you can run for many common scenarios, such as Outlook startup or profile setup problems.
Especially if you’re using a different version of Windows, this can break compatibility with Microsoft Outlook or Outlook configuration files.
Last, you should replace the damaged file to a recovered one or merely add the recovered file to the list of data files in Outlook.