Need Urgent Help, shipping issues

I've added my USPS info, PayPal info, and shipping weights, however after trying to purchase one item, is shows me the error "No valid shipping options found. Please check your address carefully."

Not sure what's causing it. I have support access on.

Also, is there an easy way to have the inner Store pages (Shipping, Checkout, etc) be in a Full Width page format without having to change the site's default layout? I still want the Store page to show the sidebar.