store/shopping-cart/shipping/ is not there.

When going through the check out process, can see all items in cart and go to checkout, goes to the following domain.com/store/shopping-cart/shipping/ and no browser can pull it up. They all say some verison of it not being there.

I have changed shipping options in the store settings, but the one that I want to use, weight, won't let me make any changes to the weight entry fields.