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.

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