Fatal error: Uncaught Error: Interface 'WP_Rocket\Engine\Activation\ActivationInterface' not found in C:\xampp\htdocs\wp-content\plugins\wp-rocket\inc\Engine\Cache\WPCache.php:9 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\wp-rocket\inc\Engine\Cache\WPCache.php on line 9