Fatal error: Uncaught Error: Class 'MasterStudy\Lms\Http\Serializers\AbstractSerializer' not found in /home/tholic/training.stjohnkenya.org/wp-content/plugins/masterstudy-lms-learning-management-system/includes/Http/Serializers/CourseLevelSerializer.php:5 Stack trace: #0 {main} thrown in /home/tholic/training.stjohnkenya.org/wp-content/plugins/masterstudy-lms-learning-management-system/includes/Http/Serializers/CourseLevelSerializer.php on line 5