DATABASE ERROR:

SELECT c.*, cat.title as category
				FROM cms_content c, cms_category cat
				WHERE c.published=1 AND c.category_id = cat.id AND c.category_id = cat.id AND cat.NSLeft >= 5 AND cat.NSRight <= 6 AND c.pubdate<'2012-04-02 15:47:47'
				ORDER by c.pubdate DESC
				LIMIT 50

Query 'SELECT c.*, cat.title as category FROM cms_content c, cms_category cat WHERE c.published=1 AND c.category_id = cat.id AND c.category_id = cat.id AND cat.NSLeft >= 5 AND cat.NSRight <= 6 AND c.pubdate<'2012-04-02 15:47:47' ORDER by c.pubdate DESC LIMIT 50' failed