[Plugin: Jetpack by WordPress.com] Jetpack comments not working

I installed Jetpack to my ‘dummy’ site before my real site. It worked fine.
Everything is the same, plugins, versions, etc. with my running site.

When I installed it on the site I want to use it on the comment box will appear. The option to subscribe via email for follow up comments doesn’t show (the option is checked inside the admin). I left a test comment and it redirected to the /wp-comments-post.php file and I received 404 error. The actual page was /wp-comments-post.php&from=https://jetpack.wordpress.com/jetpack-comment/
and the comment was never posted.

I’ve cleared all caches on the site, with Cloudflare, and MaxCDN. I’m running Genesis child without any modifications to the comment output. The only thing I have are comments closed on posts older than 90 days.

I am running the Comment Notifier plugin but disabled it before using Jetpack. I want to use the notifier feature in Jetpack along with the other options Jetpack Comments offers.

Any ideas how to clear this issue and what would cause the wp-comments-post.php not to function correctly with the Jetpack redirects?

Thank you.

https://www.ads-software.com/extend/plugins/jetpack/