Online Courses (you are probably using favorites/bookmarks to get to your online course, or you are trying to do a "search" for the online course)
This domain is being shared.
To return to your online course, find the email that was sent to you from "email@example.com" that said "Registration Completed <<< KEEP THIS EMAIL >>>" in the subject line. If you do not see that email in your inbox, check your spam or junk folder. You will click (or copy and paste) the link that is provided in that email to return to your online course.