A. Remove Office license files on a Mac and activate them.
https://support.microsoft.com/help/b0...
1. Download the license removal tool.
2. Open the .pkg file from your Mac's Downloads folder.
After you've successfully activated, restart your computer and then you're good to go!
If the issue persists,
B. Go to Applications - click KeyChain Access under the folder Utilities - delete all the items you find about “Office”.
Then you can sign in again to check if the issue persists.
C. Click Go - Go to folder - go to Library - Group containers - delete the folder UBF8T346G9.Office.
Then sign in Office application to check if the issue persists.
I hope this information helps. If you have any questions, please let me know and I’ll be glad to assist you further.
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