Fatal error: Uncaught Error: Call to undefined method STM_LMS_Sequential_Drip_Content::lesson_is_locked() in /home/customer/www/learnmeaba.com/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/course-player/cp-template-functions.php:123 Stack trace: #0 /home/customer/www/learnmeaba.com/public_html/wp-includes/class-wp-hook.php(324): masterstudy_lms_course_player_main_template_data('description', 'leccion-10') #1 /home/customer/www/learnmeaba.com/public_html/wp-includes/plugin.php(205): WP_Hook->apply_filters('description', Array) #2 /home/customer/www/learnmeaba.com/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/stm-lms-templates/course-player.php(16): apply_filters('masterstudy_lms...', 'description', 'leccion-10') #3 /home/customer/www/learnmeaba.com/public_html/wp-includes/template-loader.php(106): include('/home/customer/...') #4 /home/customer/www/learnmeaba.com/public_html/wp-blog-header.php(19): require_once('/home/customer/...') #5 /home/customer/w in /home/customer/www/learnmeaba.com/public_html/wp-content/plugins/masterstudy-lms-learning-management-system/_core/lms/course-player/cp-template-functions.php on line 123