Saludos
El error se encuentra en la sentencia sql
Código PHP:
//ANTES
$qry="SELECT post_title,post_content,guid FROM `wp_posts` WHERE post_type=\"post\" AND post_status=\"publish\" ORDER BY `wp_posts`.`post_date` DESC LIMIT 1,6";
//MODIFICADA
$qry="SELECT post_title,post_content,guid FROM wp_posts WHERE post_type='post' AND post_status='publish' ORDER BY post_date DESC LIMIT 1,6";