OpenTshirts Problem!

Im having a problem with the OpenTshirts products on my website. here is my URL: www.dgcustomgraphics.com
Any help on this is greatly appreciated. The problem is only happening to the OpenTshirts products, they cannot be added to the shopping cart. when you click on the add to cart button it only takes you to that product page. This was working previously and I'm not sure what was done to break it.

can you give me a direct link to the product?

http://dgcustomgraphics.com/opencart/in ... ry&path=61

None of the products in the T-Shirts, Fleece, or Activewear categories will "add to cart".
However, all of the other products seem to be functioning correctly...

UPDATE:
I uninstalled and reinstalled newer version of openTshirts module. This fixed the add to cart function.
However, I now have a new problem. the "Create a Design for this Product" link is gone! I figured maybe I should reinstall the product packs and when i do the "Create a Design for this Product" link is there but the add to cart quits working again!

Had you share your issue on their forum?
Most likely you will get better answer there.