Column 'sort_order' in order clause is ambiguous
SELECT `product`.productID, `product`.`name_ru` AS `name`, Price, in_stock, `product`.slug, `product`.categoryID as categoryID, product_code, virtual_ownerID from SC_products as `product` LEFT JOIN SC_categories as `cat` ON (`product`.categoryID=`cat`.categoryID) WHERE `product`.categoryID>1 and Price>0 and enabled=1 and `cat`.hidden=0 order by sort_order, name