Associating not working

Seriously I don’t understand why this isn’t work. Why does Facebook have to make this so hard? After like two hours of installing things and changing settings (with no help from Facebook’s help pages), I FINALLY have this text in my WordPress profile page:

Associate my WordPress account with my Facebook account

And a second one about allowing posts. Yet when I click it, nothing happens. No message, just a box for a second then nothing. What is wrong?

All I want to do is post a blog post from wordpress onto Facebook. You know how easy it is to do this with Twitter? EXTREMELY EASY. In fact, I could set up a WordPress->Twitter->Facebook quickly because its SO EASY.

https://www.ads-software.com/plugins/facebook/