Add a domain with existed ns1 name server

My domain previously has ns1 name server attachted to it. I did remove it then try to add my domain in netlify. However, there is an error keep showing:
“A DNS zone for this domain already exists on NS1” error trying to create DNS zone “uscel.com”. How can I fix this?

Hi, @3dsigma. It appears you are running into this issue:

https://community.netlify.com/t/support-guide-name-com-domain-reports-a-dns-zone-for-this-domain-already-exists-on-ns1-error/11461/2

Please take a look over that support guide and then let us know if there any questions.