Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
1
Some people are reporting this is occurring even though there is no problem with their subscription.
Open Word.
At the top of Word, log out of Office.
Restart your device, then log back into Office, is your subscription then recognised correctly.
2
If not, log into your Microsoft account on this link and check the expiry date on your subscription is listed correctly.
https://account.microsoft.com/services/
If not, go to the Payments and Billing section, is it indicated your subscription payment is processed correctly.