Publishing DotNetNuke using WebMatrix

I have just attempted to publish a site via WebMatrix and have hit a problem.

When I try to run the site I get an error;

Domain Name www.MyClientsDomain.com.au Does Not Exist In The Database 

I have no idea what this is asking me. I changed the HTTPAlias field in the 开发者_如何学PythonPortalAlias table like it said at the bottom of the error page but that did not fix the problem.

It should be referring to the portal alias, you may just need to restart the site to see your changes.