Fatal error: Uncaught Error: Class "WP_Widget" not found in /home/ctnaor5/public_html/wp-content/plugins/the-events-calendar/common/src/Tribe/Widget/Widget_Abstract.php:15 Stack trace: #0 {main} thrown in /home/ctnaor5/public_html/wp-content/plugins/the-events-calendar/common/src/Tribe/Widget/Widget_Abstract.php on line 15