When I test this out with the URL you provided I can see the issue. I add the item to the cart, then choose to checkout with PayPal. When I'm returned to the site I get the your cart is empty message.
When I look up at the URL I can see why, you are being redirected back to jacobsfishinghole.com/ instead of www.jacobsfishinghole.com/. This value is based on the settings that are in your wa_settings table.
It should include any www or any other preset that you have for your site, when you installed did you install with a URL of jacobsfishinghole.com? If so this is probably the reason you are getting this error. You should be able to check and update this value by going into your db and looking in the wa_settings table. In here for the root URL you should add in the www part and save your update.