Empty pop up appear on checkout when no shipping method available using manual s

-- url of the page with the problem -- : unicomms.saveusfromdiabetes.com/hikashop/index.php/en/
-- HikaShop version -- : Business 2.6.4
-- Error-message(debug-mod must be tuned on) -- : Empty popup with no error message

Hello guys,

I have setup a shop using manual shipment methods with geographical restrictions.

Now, when the customer tries to purchase a product that does not have a shipment method to his address, when he goes to checkout, he is greeted first with an empty popup box. When he closes the popup, then he can see on the checkout list that there is no shipment method for some of his chosen products.

How do I put in some friendly error message into the popup instead of having an empty one. Can't find it under Languages.

Thanks.

You're right, Nicolas. I removed the display system messages setting under the theme that we are using and the message has gone. Thanks.