Apparently I'm using the wrong address?

I’m using your bar on my website, https://www.explorationtravelmagazine.com, but it seems I must be using the wrong address because clicking the bar’s subscribe button takes people to a page that is the much broken down, text version of the site.

As a site that WordPress based, what address should I be using for people who wish to subscribe. Currently, it’s https://www.exporationtravelmagazine.com/feed/

https://www.ads-software.com/plugins/wordpress-notification-bar/