Fatal error: Uncaught Error: Class "WP_REST_Controller" not found in /www/wwwroot/jiuyou.com/wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php:19 Stack trace: #0 main thrown in /www/wwwroot/jiuyou.com/wp-includes/rest-api/endpoints/class-wp-rest-sidebars-controller.php on line 19