Can't use my domain on netlify

I tried adding A record, this was my feedback please help. A: 400 - link exists, all config must be empty

hi there, can you tell us what your domain name is and also your Netlify instance name?

What have you already tried? - did you receive any other error messages?

My domain is, and my nelify name is truebliue1

Hi there,

Can you tell me what you are trying to do? We automatically create DNS records for you when you enable Netlify DNS management on a domain. Your bare domain and www domain will point to Netlify by default. You just need to add the domain to a site and it should just work after you change your name servers to ours. The name servers you should be using are the ones specified on the same page where you took that screen shot.

Thanks have solved the problem