cloud issues

ok let me start off by saying im not tech savey

i want to be able to do cloud backup , but keep getting this error

Troubleshooting details
If you contact your administrator, send this info to them.
Copy info to clipboard
Request Id: 55b97c55-4e36-47fe-946c-6b50401e1500
Correlation Id: 39102bf5-1109-49bf-bc1b-e22dc0e4ac02
Timestamp: 2023-05-15T00:16:40Z
Message: AADSTS500200: User account '[email protected]' is a personal Microsoft account. Personal Microsoft accounts are not supported for this application unless explicitly invited to an organization. Try signing out and signing back in with an organizational account.
Flag sign-in errors for review: Enable flagging
If you plan on getting help for this problem, enable flagging and try to reproduce the error within 20 minutes. Flagged events make diagnostics available and are raised to admin attention.
why ...any help is apperciated