HI there,
There are a couple of reason this may not have propagated:
1- Check that the DNS settings in Ezoic match your host exactly
You are able to update these manually in your Ezoic Dashboard under 'Settings' > 'DNS Settings' > 'Edit DNS Record'. Here is a link with more information on this: How To Update/Add: DNS Records and Subdomains
Additionally, this article may help you locate these at the host if you're struggling: Where to Find DNS Records at Your Host.
2- Ensure you have the Ezoic SSL setup on your site. You can do this by enabling Privacy under your Privacy tab. Here is some information on Using SSL with Ezoic
3- Make you you changed the Name servers to the correct servers shown in your dashboard for that particular site. If you have multiple sites in your account each may have different Ezoic Name servers. So make sure you are change to the correct one show in the dashboard for that site.
4- Ensure you are changing your Name Servers at your Registrar and not your Host.