Fatal error: Uncaught Error: Class 'TEC\Common\Contracts\Service_Provider' not found in /home/malvernj/public_html/wp-content/plugins/the-events-calendar/src/Events/Admin/Settings/Events_Pro_Upsell.php:21 Stack trace: #0 {main} thrown in /home/malvernj/public_html/wp-content/plugins/the-events-calendar/src/Events/Admin/Settings/Events_Pro_Upsell.php on line 21