Fatal error: Uncaught Error: Class "WP_Async_Request" not found in /home/workings/public_html/hidden/wp-content/plugins/the-events-calendar/common/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php:16 Stack trace: #0 {main} thrown in /home/workings/public_html/hidden/wp-content/plugins/the-events-calendar/common/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php on line 16