Fatal error: Uncaught Error: Class 'WP_REST_Controller' not found in /homepages/19/d870201071/htdocs/ilcp/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php:17 Stack trace: #0 /homepages/19/d870201071/htdocs/ilcp/wp-settings.php(248): require() #1 /homepages/19/d870201071/htdocs/ilcp/wp-config.php(94): require_once('/homepages/19/d...') #2 /homepages/19/d870201071/htdocs/ilcp/wp-load.php(37): require_once('/homepages/19/d...') #3 /homepages/19/d870201071/htdocs/ilcp/wp-blog-header.php(13): require_once('/homepages/19/d...') #4 /homepages/19/d870201071/htdocs/ilcp/index.php(17): require('/homepages/19/d...') #5 {main} thrown in /homepages/19/d870201071/htdocs/ilcp/wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php on line 17