Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi,
To better understand the issue and help suggest the most appropriate solution, may I ask a few questions?
Are you receiving any specific error message when opening or using the Microsoft 365 apps? If yes, please share the exact message or a screenshot if possible.
Also, please sign in to your Microsoft Services & Subscriptions page using the link below:
https://account.microsoft.com/services
Do you see your Microsoft 365 subscription listed there, and does it show as Active?