Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/tholic/training.stjohnkenya.org/wp-content/plugins/masterstudy-lms-learning-management-system/_core/settings/lms_wpcfto_helpers.php:7 Stack trace: #0 /home/tholic/training.stjohnkenya.org/wp-content/plugins/masterstudy-lms-learning-management-system/_core/settings/lms_wpcfto_helpers.php(3): STM_LMS_WPCFTO_HELPERS->__construct() #1 {main} thrown in /home/tholic/training.stjohnkenya.org/wp-content/plugins/masterstudy-lms-learning-management-system/_core/settings/lms_wpcfto_helpers.php on line 7