My license Can't use.
What can I do?
Has it expired? The beta subscription is normally automatically renewed for users active in the beta project.
I've no idea why yours has expired. Sometimes they have been known to miss the renewals in error, and sometimes it's because the user is not active enough in the beta program.
If no one else responds here shortly, then I suggest that you log into your beta portal and raise a bug report, to which they should respond.