Looks like one of the APIs I used to send emails changed so the confirmation emails used to verify email address ownership when people sign-up weren't working.
I've updated the code so if you signed up and never received the email to activate your account, you should be able to re-request it by going to:
https://www.jehovahs-witness.com/account/confirm
Remember to check for spam / junk mail (just in case it's gone into there) but if anyone still has trouble activating their account, you can email me: [email protected]