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 = 'f8f6ee1e6a7d6bbc0adbd42bead861' at line 1
UPDATE prod_stats SET prodstats_numviews = prodstats_numviews+1, prodstats_lastseen = '2013-05-20 06:39:50', prodstats_catid = , prodstats_parentid = 495 WHERE prodstats_hash = 'f8f6ee1e6a7d6bbc0adbd42bead8611c'