it doesn’t work on my website

Hello, good morning. It’s not working on my WordPress.
I install and activate the plugin, then go to my profile and see the options.

But then, for example, if I activate “fido2 U2F” and update my profile, it doesn’t get activated. I don’t understand.

My website DOES have SSL.

I’ve seen this video where it explains it well.
https://www.youtube.com/watch?v=59frxLVvwF8

But when I click the REGISTER NEW KEY button on my website and then insert my yubikey, nothing happens. The Windows Security window doesn’t appear.

And I’m stuck there.

I’ve tried doing it with Firefox and Chrome, and both have the same result. I don’t know if you can help me. Thank you very much.

The page I need help with: [log in to see the link]