Usernames already made

Hello, I'm trying to make an account but it says I've already registered one.

Problem...

Unfortunately, we have detected that the following username(s) have already been registered from your IP address. If you believe this is in error, or you are trying to legitimately change your account, please open a dispute and a sythe.org staff member will assist you. Make sure you include everything on this page in your dispute or it will not be addressed.

Username(s)

blackmama
Time: 1392560456

I don't know why this is; I live alone so nobody else has that IP address, it's static and it hasn't changed in years.

 

http://www.sythe.org/members/384218-blackmama.html

That name is already taken, you need a different name.