Fatal error: Uncaught Error: Class 'WP_Widget' not found in /home/clmepl5/public_html/web/app/plugins/events-calendar-pro/src/Tribe/Mini_Calendar_Widget.php:3 Stack trace: #0 {main} thrown in /home/clmepl5/public_html/web/app/plugins/events-calendar-pro/src/Tribe/Mini_Calendar_Widget.php on line 3