Course blocked, but lessons still visible

I’m having a problem. I list the lessons after the enroll link. So, i have a shortcut to enroll, and after that, the lessons. My problem is if i restrict the course (at this example, its course 103, which needs the course 101 is completed first so the student can access the lessons from course 103 only after completing course 101), it shows that the studend can’t enroll on the course until finishing course 101. The lesson links, HOWEVER, still works, so the students can access the lessons from course 103 without completing course 101. How can i avoid this?
This is how my shorcode looks:
[namaste-enroll course_id=19089]
[namaste-first-lesson “Primeira Aula”]>

How can i give acess to the first lesson only if the student completed course 101?
On my course 103 page it’s set that the course 101 is pre requisite to acess course 103, but the lessons are still available trought the shortcut link.

Hope u can understand me!
Greetings from Brazil!

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The page I need help with: [log in to see the link]