Fatal error: Uncaught Error: Class 'WP_REST_Meta_Fields' not found in H:\root\home\agubski-002\www\alexgubski\blog\wp-includes\rest-api\fields\class-wp-rest-post-meta-fields.php:17 Stack trace: #0 {main} thrown in H:\root\home\agubski-002\www\alexgubski\blog\wp-includes\rest-api\fields\class-wp-rest-post-meta-fields.php on line 17