and the message "A token was sent to your e-mail that will allow you to edit your account details"

I don't received that email :/
just try to log in or register a new account. I didnt have to go to my email at all
i think he has troubles with the 2 factor authentification... you need do confirm changes to your accounts(if you want to add a payout address for example) with your email address... but if you don't receive those mails you can't change anything...
cheers