This domain name can’t be used because it contains a protected word or inappropriate language

I'm trying to register live.domains with my company domain name centrodevacunas.com but i have this error;
This domain name can't be used because it contains a protected word or inappropriate language. Please contact support if you feel this is not the case.

Can I get any help with that? I've made a couple posts already but all they say is they will escalate this behavior to a Support Specialist so it can be investigated further.. but that's as far as it goes.