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

Hello,
I tried to register my domain in https://domains.live.com/Signup/SignupDomain.aspx

I got the error 'Domain name can't be used because it contains a protected word or inappropriate language'. My domain name is www.centrodevacunas.com
 The company is registered in the Dominican Rep.. We are a vaccination center. People come to us to get the shots or we go to different places to offer the service (usually for companies or vaccination campaigns).