I have a community efront version 3.6.15 installed and whenever I click Lessons list and select a course I always get this error
"PHP Fatal error: Call to a member function toHTML() on a non-object in /var/www/NCCPIO/ecourses/libraries/includes/directions_tree.php on line 115"
I noticed this error while using the mobile theme. If I revert back to default theme, I dont encounter this problem
Hope theres an easy fix for this
Thanks in advance