[Plugin: eShop] Add to cart

Hi All,

here is my new eshop, http://www.80queen.com
I have install “eshop” plug-in, and i found some problem now,
when I click “Add to cart”, the Product Options list (qty, size…etc.) will show 1 second only and automatically go to check out page.

Could anyone can give me some suggestions?
http://www.80queen.com/?p=14

Thanks all!!

http://wordpress.org/extend/plugins/eshop/