Coursepress Pro Invalid Post Error

I'm getting a strange error for CoursePress Pro. My students are still able to use their workbooks and go through the course normally. It just looks unseemly. Here is the error:

Warning: Invalid argument supplied for foreach() in /home/astclaire/public_html/wp-content/themes/wpl-galaxy/wproto/model/post.php on line 234

The "Start Learning" and "Continue Learning" buttons do not work in Internet Explorer at all. If I click, they go nowhere.

Also, I'm getting some odd placement of bullet points. The bullets show up *between* unit titles instead of in front of the unit titles. Very strange and a bit annoying.