Что это за ошибка

Здравствуйте. У вас не отрабатывает вот такой запрос к базе данных.
 
SELECT c.id as id, c.target as target, c.target_id as target_id, c.target_link as target_link, c.target_title, c.content as content, c.guestname, c.pubdate as fpubdate, IFNULL(c.user_id, 0) as user_id, IFNULL(u.nickname, '') as author, IFNULL(u.login, '') as author_login, IFNULL(v.total_rating, 0) as rating FROM cms_comments c INNER JOIN cms_users u ON u.id = c.user_id OR c.guestname<>'' LEFT JOIN cms_ratings_total v ON v.item_id=c.id AND v.target='comment' WHERE c.published=1 AND c.target IN ('faq','catalog','boarditem','blog','article','palbum','photo','userphoto') GROUP BY c.id ORDER BY c.id DESC LIMIT 70

 
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LIMIT 30"
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