Answer: Your course is not yet visible.
In order to make your other courses visible or turn them on, you will need to locate the course in your course list, and then click on it. Then, under Course administration, you will need to click Edit settings.
On the new screen, next to the heading Visible you will need to change the dropdown from hide to show. You may want to keep things hidden until you’re all set.
Once you have completed these steps, click Save changes at the bottom of the screen. Your course is now visible to all of the enrolled students.