Error!

MySQL Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-15, 15' at line 3
SQL Statement: SELECT contents.*,content_types.tag as content_type_tag,content_types.short_tag as content_type_short_tag, content_types.class_name as content_type_class_name, content_types.slug as content_type_slug,events.id,events.start_date,events.end_date,events.location,events.venue,events.contact,events.phone,events.start_time,events.end_time,events.website FROM contents JOIN content_types on contents.content_type_id = content_types.id join events on contents.id= events.id WHERE content_type_id=2542 and published=1 and date(publish_date) <= '2014-10-23' and magazine_id=13 and contents.id IN (SELECT content_id FROM content_taxonomy WHERE taxonomy_id = 1) ORDER BY events.start_date DESC LIMIT -15, 15