Multi-Domains not showing on user registration side

Hi,

Multi-Domains are not showing on user registration side and I get a not found error.

http://reiki.earth/register/

I followed the setup instructions.

On the admin side I can choose them when adding a new site - although I get a Not Found error - (the DNS has resolved). Although this shouldn't stop the drop down menu from showing on the sign up page.

Support access is on.

Thanks,
Justin