Well it doesn’t take me there so I don’t know what it is that you are doing, that is a secure page signified by the https.
If you mean that actions you chose on that page take you back, that is different. If you chose the option you first said then it would have to go back to be able to search for your old email address as there would be no reference on that page.
So choose third option, “I’m a registered user and my registration key has expired, I need a new one.” That should keep you on the https page and hopefully complete with success.