Add to Cart keep looping forever?

Hi,
Please help! I am testing vDesign plugin in the website.
After I output the design and click the "AddtoCart" button, but it just keep looping forever, not go to the Shopping Cart.

I am using the vShop Virtuemart template, and hosted by GoDaddy.

Hi,
Please share your backend & FTP login credentials via Contact us form, We'll look into it.