The reason it's getting disabled is because it's a disabled key that has been used by more then one person, or is a key-generated key. So the problem is your fault, unless you got a legitimate key from this website. Then there is a problem.
Indeed, if it is a real key, (doubt it) then send a email to support AT toribash.com , they should be able to fix it, but don't bother sending a fake key, they can tell.. They are magic like that.