Why you might not be able to access lessons in a course.
Problem: When you try to access a tutorial, the lesson appears locked.
Cause 1: You are not logged in.
Solution: Please, log in. 😊
Cause 2: You are not a student in a group with access to this course or the course is not in active period.
Solution: Ask you teacher to check that you are in the right group and that the course dates in your group are correct. Your teacher might find this article helpful.