sadique do you want to integrate with Ezoic via the Cloudflare method or the name server method? With the Cloudflare method you use Cloudfare's name server addresses and input your Cloudflare credentials into the Ezoic cloudflare app, which means both Cloudfare and Ezoic sit in the request chain between your host and web users and proxy your website.
If you integrate with Ezoic via namesrevers then you point your nameserver adresses at your registrar to Ezoic which means only Ezoic sits in the middle of the request chain. Either method is fine and we have thousands of publishers using these methods of integration. Once you have decided - you can go to your dashboard for instructions: https://pubdash.ezoic.com/settings/connection/siteintegration
With regards to the errors you are seeing in the Google Search Console, Tucker said the errors have started decreasing based on the srceenshot you sent - this means disabling the security plugin likely fixed the issue and it's just going to take Google a bit of time to register this fix across all your URLs.