Why, if I put the link of a class I have recorded in a browser a sign comes up saying "You are not authorized to see this class." Is it because I am a free member and so as to be seen I need to become a Premium?
This message appears if anyone tries to view the recording of a private class for which he/she was not invited by the presenter. Whenever a teacher schedules a class and invites various people, then a unique link is created for every invited attendee. And if this attendee tries to share the link with someone else then this uninvited user is not allowed to enter the class. This has been implemented to keep classes secure.