Please give a screenshot like below to tell the version of your Office.
Open an Office application and then go to File>Account>Product Information>About…
Note: please cover your private information if there is.
Are there any detailed error messages? If yes, please give a screenshot.
Does error occur when opening other Office applications?
You could open Project in safe mode to troubleshoot macros, add-ins, and startup items and then see if the error exists.
- Find the shortcut icon for Project.
- Press and hold the CTRL key and double-click Project shortcut.
- Click Yes when a window appears asking if you want to start Project in Safe Mode.
Note: keep pressing the CTRL key until you see the notification.
If it doesn’t work, repair Office online.
If you have any updates, please post back.
Regards,
Erin
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