Fatal error: Uncaught Error: Class 'WP_Rocket_WP_Background_Process' not found in /home/parstahv/public_html/wp-content/plugins/wp-rocket/inc/Engine/Admin/Database/OptimizationProcess.php:11 Stack trace: #0 {main} thrown in /home/parstahv/public_html/wp-content/plugins/wp-rocket/inc/Engine/Admin/Database/OptimizationProcess.php on line 11