Can't add Address to Continue Checkout Process

When I try to checkout, it won't let me continue without adding a Shipping Address. This makes sense, but when I click on the "new" button, nothing happens. I tried adding my Address through User Registration which didn't help solve the problem either. When I try to click "next" without an address, I get the "Please create or select an address" message. How can I fix this? www.gen-conn.com/joomlagavern/index.php/store/checkout

Thanks in advance for your help!

Hi,

You probably have a Javascript error, because when clicking on new it should open a Popup to enter your address.
Thanks to give us a test account without address.