MySQL error on csv import

-- url of the page with the problem -- : gumi.szigmatrade.hu
-- HikaShop version -- : 3.2.0
-- Joomla version -- : 3.8.0
-- PHP version -- : 7.1
-- Browser(s) name and version -- : chrome 66

Hi,

I created a mass action which imports a csv file from server. However, when I try to execute this mass action, I get a mysql error 1064. What can cause this error?
I am enclosing a screenshot about the error.

Thanks,
Andras