my domain not working

[gameserv15]

hello
i have a new domain
www.zombie-killzone.nl

i want to put it in the domains
and i get this error

The domain you have supplied is already in use.

and when i type teh domain in my browser it points to x10hosting page

 

[misson]

From what I see, those domains aren't managed by the X10 name servers but by nameserverffs.com. You need to set X10 as the authority for your domain names. You might not be able to finish this process, as cPanel is having issues, described in the announcement at the top of the Free Hosting forum page. The admins are going to be working hard on that problem for awhile.