Fatal error: Uncaught Error: Class 'WP_REST_Meta_Fields' not found in D:\htdocs2\a-resultat.dk\wp-includes\rest-api\fields\class-wp-rest-post-meta-fields.php:17 Stack trace: #0 {main} thrown in D:\htdocs2\a-resultat.dk\wp-includes\rest-api\fields\class-wp-rest-post-meta-fields.php on line 17