Fatal error: Uncaught Error: Class 'WP_HTTP_Response' not found in /home/wiktorek1221/public_html/klasaivwb/wp-includes/rest-api/class-wp-rest-response.php:17 Stack trace: #0 {main} thrown in /home/wiktorek1221/public_html/klasaivwb/wp-includes/rest-api/class-wp-rest-response.php on line 17