Fatal error: Uncaught Error: Class 'WP_REST_Controller' not found in E:\www\web\wp-content\plugins\wp-super-cache\rest\class.wp-super-cache-rest-test-cache.php:3 Stack trace: #0 {main} thrown in E:\www\web\wp-content\plugins\wp-super-cache\rest\class.wp-super-cache-rest-test-cache.php on line 3