Permissions on CoursePress

I created an instructor user and they added a new course with 2 units. They logged back in and no longer see those units (course is still there) as an admin, I see the units.

Getting these notices also

Notice: Trying to get property of non-object in /home/18608-31997.cloudwaysapps.com/nmmrdjajdu/public_html/wp-content/plugins/coursepress/includes/classes/class.course.unit.php on line 677

Notice: Trying to get property of non-object in /home/18608-31997.cloudwaysapps.com/nmmrdjajdu/public_html/wp-content/plugins/coursepress/includes/classes/class.course.unit.php on line 677