Fatal error: Uncaught Error: Class 'WP_Comment_Query' not found in /home/host09/public_html/wp-includes/comment-template.php:1320 Stack trace: #0 /home/host09/public_html/wp-content/themes/twentyfifteen/single.php(28): comments_template() #1 /home/host09/public_html/wp-includes/template-loader.php(75): include('/home/host09/pu...') #2 /home/host09/public_html/wp-blog-header.php(19): require_once('/home/host09/pu...') #3 /home/host09/public_html/index.php(20): require('/home/host09/pu...') #4 {main} thrown in /home/host09/public_html/wp-includes/comment-template.php on line 1320