Hi,
I don't see any structured data error on that page:
i.imgur.com/lVMa47L.png
It would be great if you can say what error message you have when you report an error...
Otherwise, it's llike getting your car to be fixed without telling the person what problem you have with it.
The only issue I see there is a CSS issue.
You can add :
.hikashop_product_page .hk-row-fluid {
clear: both;
}
and that should help a lot. Reducing a bit the image size on the product page with the settings under the "images" section of the HikaShop configuration, or reducing the width of the right sidebar position in your template would help the image not going over to the right side of the product page, where the price and add to cart buttons are.