Hello Xuanbin Zhang,
Thanks for your question.
Try the following:
- Clear your browser’s cache and cookies.
- Try to use an account added to the tenant and not a personal or guest account
For detailed steps see: https://learn.microsoft.com/en-us/troubleshoot/entra/entra-id/app-integration/error-code-AADSTS50020-user-account-identity-provider-does-not-exist
You can mark it 'Accept Answer' and 'Upvote' if this helped you
Regards,
Abiola