For every request which is being made from a mobile device, the server is redirecting the client to a mobile url.
In this particular case(url http://golddiggerinc.com/blog/ in facebook post), the server is redirecting the client to the page http://mobile.golddiggerinc.com/blog, which is not available on the server.
The blog section on the mobile page gets the user to http://mobile.golddiggerinc.com/#2963.
The ideal redirection for the blogs section should be http://mobile.golddiggerinc.com/#2963.
So, the server on identifying a mobile user agent and the url http://golddiggerinc.com/blog/ should redirect the client to http://mobile.golddiggerinc.com/#2963. This can be done on the server.
But the easiest fix would be to remove the /blog path in the url on the facebook post and asking the user to navigate to blogs section. ;-)