Unfortunately no one can be told what Phantom Linux OS is - you have to see it for yourself.
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Note that the above link is for desktop Outlook for Windows.
Click the above link to have a quick download, then you can have Outlook errors fixed within minutes.
Follow these steps to let Outlook diagnose and fix errors in your Outlook mail profile that might be causing the issue.
Further, start the application again to check if the error has been fixed.
If it does and Outlook starts working properly, then most likely the problem is with one of your add-ins, which leads us to the next step.
You have important things to do in your Yahoo account, so let's get you back in!
If you're having problems sending or receiving email, read how to Fix Outlook.com email sync issues.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
To do this, start up the Windows Task Manager either by pressing Ctrl + Alt + Del, or by right clicking the taskbar and choosing "Start Task Manager".
Similar to our earlier suggestion of repairing Office (see #3 Repair Your Microsoft Office above), perform the same steps except choose to Uninstall.
So, we have produced this list of general things to try to resolve your problem in Outlook.