eugene1975 typically the plugin integration will fix yes, because with this type of integration Ezoic sits in a different place in the request chain so our requests don't get blocked by your host, usually. However plugin integration is slower than cloud integration for your web users so we recommend as an ideal solution using the cloud integration and investigating the origin errors with your web host. They'll just need to whitelist Ezoic's Ips on their server and any firewalls, as intermittent origin errors on login pages will be being caused by the request blocking that I mention. The ips are found here: https://support.ezoic.com/kb/article/how-to-fix-origin-errors.
As a precaution you should make sure you whitelist Ezoic's Ips in any other external security tools/ plugins that you use yourself as well.