Fatal error: Uncaught Error: Class 'WP_Customize_Control' not found in /home/www/sieml/wp-content/plugins/the-events-calendar/common/src/Tribe/Customizer/Control.php:19 Stack trace: #0 {main} thrown in /home/www/sieml/wp-content/plugins/the-events-calendar/common/src/Tribe/Customizer/Control.php on line 19