artbasic

the problem I’m having is:
I set up a course with the create a course template > save course > view course online > (I’m able to view the course, click on the members, activities, forum, etc. tabs in the create a course mode and they all work but I note in the tab above the url address box it says page not found)

Then when I use the create a course template to create another course and I can view all the tabs in the create a course ok with the same tab above the url address box saying page not found.

Then I go to dashboard and try to view the course or edit the course in visual composer I get the last course I created and not the course I created.

When I click the plain edit the course I get the correct course but I can view it or edit with visual composer. It goes to the last course I created.

Can you tell me what is set incorrect please?
Thank you