Unknown column 'Array' in 'where clause'

-- url of the page with the problem -- : localhost
-- HikaShop version -- : 2.5.0
-- Joomla version -- : 3.4.3
-- PHP version -- : 5.5.12
-- Browser(s) name and version -- : Firefox 37.0.2
-- Error-message(debug-mod must be tuned on) -- : 1054 Unknown column 'Array' in 'where clause' SQL=SELECT * FROM gd_hikashop_category WHERE category_id = Array LIMIT 1

Hi,

I just changed few settings in my Hikashop config (can't tell which one for sure, cart flow, some currency info, shop info...) and I got this error:

Unknown column 'Array' in 'where clause' SQL=SELECT * FROM gd_hikashop_category WHERE category_id = Array LIMIT 1

hi
I also have a problem comparing . When I want to compare the two products, I'll go through this error.
Unknown column 'Array' in 'where clause'1054
Please guide.
hikashop version:_hikashop_business_v3.2.2