When I go to the link the page keeps refreshing, and I get duplicate messages at the top of the page that says "Hang on there partner, You're subscribing too fa

When I go to the link the page keeps refreshing, and I get duplicate messages at the top of the page that says "Hang on there partner, You're subscribing too fast (give it a quick second and try again)." There is also a native browser notification that says "Oops, something went wrong while subscribing you! Let's reload the page and try again." Is anyone else getting that? I haven't "subscribed" to any thing. I'm using the latest version of Firefox with the uBlock Origin addon.