Fatal error: Uncaught Error: Class 'WP_REST_Controller' not found in /home/ioufjymg/kelasweb.ruangkelas.co.id/wp-includes/rest-api/endpoints/class-wp-rest-abilities-v1-list-controller.php:19 Stack trace: #0 {main} thrown in /home/ioufjymg/kelasweb.ruangkelas.co.id/wp-includes/rest-api/endpoints/class-wp-rest-abilities-v1-list-controller.php on line 19