Sadly the web hosts for 7days2mod.com have deemed this site requires too many server resources to run, and I don't have any funds to upgrade to a bigger server, so until further notice this version of 7days2mod.com is offline.
Please visit https://github.com/7days2mod/ or stop by the forums.
Plans are moving forward with a game server manager and interactive web app for view and control. This will eventually feature many of the aspects of the 7days2mod site directly into the server manager. Check out the forum post for more info.