This site is currently Unavailable
The Active Directory Provider requires the site to be running
under Full Trust and/or in Classic mode in IIS 7.0
Commenting out the line:
<add name="Authentication" type="DotNetNuke.Authentication.ActiveDirectory.HttpModules.AuthenticationModule, DotNetNuke.Authentication.ActiveDirectory" />
in your web.config will allow you to get the site running until it meets the above requirements.