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, contents.slider_image_id as slider,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 content_taxonomy on contents.id = content_taxonomy.content_id join events on contents.id= events.id WHERE content_type_id IN ('2542') and published=1 and publish_date <= '2017-08-17 12:00:00' and contents.magazine_id=13 and content_taxonomy.taxonomy_id = 1 ORDER BY events.start_date DESC LIMIT -15, 15