Fatal error: Uncaught Error: Call to a member function sections() on boolean in /home/drmaryha/public_html/members/wp-content/plugins/memberpress-courses/app/helpers/Courses.php:361 Stack trace: #0 /home/drmaryha/public_html/members/wp-content/plugins/memberpress-courses/app/views/classroom/sidebar.php(30): memberpress\courses\helpers\Courses::display_course_overview(false, true) #1 /home/drmaryha/public_html/members/wp-content/plugins/memberpress-courses/app/helpers/Courses.php(294): require('/home/drmaryha/...') #2 /home/drmaryha/public_html/members/wp-content/plugins/memberpress-courses/app/views/classroom/single-lesson.php(19): memberpress\courses\helpers\Courses::get_classroom_sidebar(Object(WP_Post)) #3 /home/drmaryha/public_html/members/wp-includes/template-loader.php(106): include('/home/drmaryha/...') #4 /home/drmaryha/public_html/members/wp-blog-header.php(19): require_once('/home/drmaryha/...') #5 /home/drmaryha/public_html/members/index.php(17): require('/home/drmaryha/...') #6 {main} thrown in /home/drmaryha/public_html/members/wp-content/plugins/memberpress-courses/app/helpers/Courses.php on line 361