Fatal error: Uncaught Error: Class 'WP_Rocket\ThirdParty\NullSubscriber' not found in C:\xampp\htdocs\wp-content\plugins\wp-rocket\inc\ThirdParty\Hostings\SpinUpWP.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\wp-rocket\inc\ThirdParty\Hostings\SpinUpWP.php on line 15