Fatal error: Uncaught Error: Class "Tribe\Shortcode\Shortcode_Abstract" not found in /home/dennis91/public_html/wp-content/plugins/events-calendar-pro/src/Tribe/Views/V2/Shortcodes/Shortcode_Tribe_Event_Countdown.php:24 Stack trace: #0 {main} thrown in /home/dennis91/public_html/wp-content/plugins/events-calendar-pro/src/Tribe/Views/V2/Shortcodes/Shortcode_Tribe_Event_Countdown.php on line 24