Getting error when the site is supose to get created?

Everthing up until the checkout is done works perfect, but on the last page instead of creating a site, i just get this? please help

Sorry this doesn't look like a WHMCS site at [http://client.aussiemetal-webhosting.com/] Make sure your WHMCS Integration settings are pointing to the correct URL and that the WHMCS site is set for the Portal template in Setup | General.