I can't pair my 2FA Dongle to my account?

Hey so I know nobody else has this problem because im probably the only person on the planet who still wants to use blizzards old dongle. So Ive been trying to pair this thing, but whenever I go to the physical dongle pairing page I just get error 500. I get the same error when I try to go to the non blizzard mobile pairing page. How do I fix this?

Little note: I can’t use the official app because I have a pre-paid number.