Hi John,
Application error, Expired or inactive Office subscription, and profile related issue are a few of the possible reasons why you are getting this error message. To isolate your concern, we need you to answer the following:
- Which build and version of Office are you using? Click here for instructions on how to find your Office build and version.
- Which Windows build and version are you using? Click here for instructions on how to find your Windows build and version.
- Are you experiencing the same issue when accessing other Office applications?
- Is your computer connected to a domain?
- Are you installing Office to multiple devices?
- Did you make any changes before this issue happened?
In the meantime, try checking the Office program that’s active on your account by logging in to Office.com/myaccount and going to the Services & subscriptions tab.
We will be waiting for your response.