I'm trying to install a .info domain on my hostgator account but for some reason it won't work.

For some reason when I try to add it the screens says,

Error from domain wrapper: Domain already exists, it was not added.:
mysite.anothersite.info

Which makes no sense because I never added it before.

Why below it is it showing mysite which is the domain name which the .info name is for and anothersite of mine which is another domain name which has nothing to do with what I am doing.

If your confused here's an example.

dogtraining.electronics.info

To make it more clear, say I have a dogtraing.com site and electronics.info sites from before.

I want to register my other domain which is dogtraining.info but when I try to addon the domian I get this message...

"Error from domain wrapper: Domain already exists, it was not added.:
dogtraining.electronics.info"

I have no idea whats going on.

Any help would be appreciated on this