Bug in comments on CoursePress Pro

I created a course, however, for some strange reason there are a ton of comments on the course and each unit and each page of each unit of the course.

These comments are from months ago, but I just installed CoursePress Pro this past week.

Can you help?

My one course (which has only one unit) is at:
http://www.jerusalemperspective.com/courses/aleph-bet-a-beginners-introduction-to-reading-and-writing-hebrew/units/

Ideas?