Fatal error: Uncaught Error: Class 'WP_Async_Request' not found in /home/clmepl5/public_html/web/app/plugins/seo-by-rank-math/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php:14 Stack trace: #0 {main} thrown in /home/clmepl5/public_html/web/app/plugins/seo-by-rank-math/vendor/a5hleyrich/wp-background-processing/classes/wp-background-process.php on line 14