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