when I try clicking on the star it say this course cannot be added to the courses menu at this time.
Hi ErikaThis is likely to be because the teacher has not published the course yet. When you're viewing your course listing, does this course have "No" in the final "Published" column, like in this screenshot?
If so then you need to contact the course teacher and ask them when the course will be made available.
Howdy! Take a look at the blue boxed area at the top of this Guide, How do I customize my Courses list as a student?, one of the first sentences is, "When you are enrolled in more than one Canvas course, you can customize the active courses you want to show in your Course list." You can only favorite active current courses, not past or future courses. Once courses under your "Future Enrollments" start, then you'll be able to mark those with a star to favorite them.
Hope this helps; let us know.
Retrieving data ...