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 ' prodstats_parentid = 495 WHERE prodstats_hash = '24c9b04690062307d8f5ba486a34ed' at line 1
UPDATE prod_stats SET prodstats_numviews = prodstats_numviews+1, prodstats_lastseen = '2013-05-21 14:00:09', prodstats_catid = , prodstats_parentid = 495 WHERE prodstats_hash = '24c9b04690062307d8f5ba486a34ed21'