SQL error on unpublishing payment plugin

-- HikaShop version -- : 2.2
-- Joomla version -- : 3.1.5
-- PHP version -- : 5.3
-- Browser(s) name and version -- : XXXXX x.x.x
-- Error-message(debug-mod must be tuned on) -- : 1064 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 '= 0 WHERE IN ( 3 )' at line 1 SQL=UPDATE pahcw_hikashop_plugins SET = 0 WHERE IN ( 3 )

I get the above error when unpublishing a payment module (sagepay) from the system > payments screen.