Not Shipping to Your Region ISSUE

My client has a store and she went in the backend and added a new product. She swears she did not click anything although I did notice that there were some settings that were different. For example, she only accepts PayPal but I noticed that Authorize.net was clicked and so was credit card clicked.

But when her customers purchase, they get this error message saying that there is no shipping to their region. Can anyone help us? We will pay $50 via PayPal.

Not Available At This Time
Sorry, we are not shipping to your region at this time.
Please contact us for alternate arrangements.

This error means that the country was not setup in the shipping module region. Zencart is telling you "how can I ship to that place if I dont know how much it is?"

Go to admin under modules>shipping and under whatever means of shipping you use you will need to add or rectify the country code or error in the settings.