Fatal error: Uncaught Error: Class 'WP_REST_Controller' not found in /nfs/aesop1/hw00/d88/ecc/wordpress/wp-content/plugins/code-snippets/php/rest-api/class-snippets-rest-controller.php:27 Stack trace: #0 {main} thrown in /nfs/aesop1/hw00/d88/ecc/wordpress/wp-content/plugins/code-snippets/php/rest-api/class-snippets-rest-controller.php on line 27