Fatal error: Uncaught Error: Class 'Walker' not found in /home/fbnovas/public_html/site/wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-list-comments-endpoint.php:6 Stack trace: #0 {main} thrown in /home/fbnovas/public_html/site/wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-list-comments-endpoint.php on line 6