Fatal error: Uncaught Error: Class "WP_REST_Controller" not found in /data02/c0418613/public_html/test/wp-content/plugins/kadence-blocks/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php:33 Stack trace: #0 {main} thrown in /data02/c0418613/public_html/test/wp-content/plugins/kadence-blocks/includes/resources/Optimizer/Rest/Optimize_Rest_Controller.php on line 33