I've taken a look at the popup that you are currently seeing on the site. This, however, is not related to Ezoic as we do not run automatic redirect ads or send traffic to malicious sites. I highly recommend running a security scan on the site using plugins such as WordFence.
Your site may be experiencing a backend breach through either a recently installed plugin or unauthorized users making edits to your site. Your best point of contact to resolve this issue would be your host, as they have more access to the site's configuration.