error message

-- HikaShop version -- : 3.2.0
-- Joomla version -- : 3.8.1
-- PHP version -- : 7.0
-- Browser(s) name and version -- : Firefox 56.0
-- Error-message(debug-mod must be tuned on) -- : 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' CONCAT('',prod.order_product_name, ' - ' ,c.category_name) as type FROM #__h' at line 1

Hi,

I was in the control panel of Hikashop and tried to edit the window "sales of the month", because it shows nothing, but have orders.
But suddenly I get this error message when I click in the control panel of Hikashop.

1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' CONCAT('',prod.order_product_name, ' - ' ,c.category_name) as type FROM #__h' at line 1

screen: imgur.com/a/mO6F4

What can I do? I need urgently help please.

Thanks in advance
Simone

Thank you for your response.

Unfortunately, it didn't fix the issue.
Now the error differs a little:
1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ' CONCAT('',prod.order_product_name, ' - ' ,c.category_name) as `type` FROM chdg4' at line 1

Could you help me if I would give you access to the backend?

Regards,
Simone

hi,
I could solve the problem.
There must be an error in the report: Sales this month.
I removed this report and after that it worked again and I could create a new report: Sales this month.

Regards,
Simone