Though course is have offering with activities, No offerings available message is coming

Summary:

Dear Team,

We have a course in which 1 offering has been added and in that offering there are some activities and evaluations also.

With Line Manager login, I assigned that course to one of my directs and when employee logged in to complete the course -> Me -> Current Learning -> assigned course

"No offerings available message is coming and there are no offerings also to complete the course.

What could be the solution for this?

Could you please let me know how can I enable the offerings to courses from front end as well and how can I make employee to complete that course.