Error as soon as student starts App Inventor

My students are getting the following error message as soon as App Inventor opens but before they can login.

"Your institutions admin need to review App Inventor Authentications"

I have been using app inventor with classes for 4 years and have never seen this message. Anyone know what it means or how to fix it?

Robert Heid
Kankakee Valley Schools
Wheatfield Indiana

This indicates that your IT has changed their Google Apps of Education domain rules to prevent logging in to App Inventor. You'll need them to review their policies as there is nothing we can do on our end.