Fatal error: Uncaught Error: Class 'WP_Rocket_WP_Background_Process' not found in /home/safetyre/public_html/blog/wp-content/plugins/wp-rocket/inc/Engine/CriticalPath/CriticalCSSGeneration.php:14 Stack trace: #0 {main} thrown in /home/safetyre/public_html/blog/wp-content/plugins/wp-rocket/inc/Engine/CriticalPath/CriticalCSSGeneration.php on line 14