Looks like you are misunderstanding what I’m trying to say. You cannot add your domain here if you’ve added your domain to another account/hosting. You’ve to un assign your domain from there (not delete the domain itself)
It has nothing to do with whatever domain is resolved or not. It is possible that your previous hosting uses same IPs for nameservers as we use for nsx.epizy.com
Again please remove your domain from the previous provider before adding here
The domain is currently in use on the provider wonzan.com. Please remove there to add the domain name to your account here.
Please make sure to also change your domain’s nameservers. This is NOT done by adding NS records to your current nameservers. Please see Go Daddy’s knowledge base to see how to do that with them: