[05-Feb-2021 16:15:17 UTC] PHP Fatal error: Uncaught Error: Class 'mp_timetable\plugin_core\classes\Controller' not found in /home/qigong1q/pvia.nl/wp-content/plugins/mp-timetable/classes/controllers/class-controller-help.php:12 Stack trace: #0 {main} thrown in /home/qigong1q/pvia.nl/wp-content/plugins/mp-timetable/classes/controllers/class-controller-help.php on line 12