When Cloud integrated with Ezoic via name servers, you will want to be sure you update your name servers at your registrar/host (wherever you manage them) to reflect the name servers Ezoic has provided to you in your Ezoic dashboard.
Please keep in mind, you should be replacing the previous name servers with the name servers Ezoic provided.
You can find the Ezoic-provided name servers in your Ezoic dashboard > Settings > Nameservers