new UM update

I was recently told that the registration page on my web site stopped working. When I did the UM update, the thing went crazy and every time me or anyone else tried to log into the site, the page was randomly redirected, and the reg page still didn’t work. I have deactivated UM which solved the redirect problem, but the registration form still doesn’t work.

Can you help?

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