I want to allow the users to RSVP without having to create

I want to allow the users to RSVP without having to create an account. I tried using the add-on called 'RSVP with email address'. When I have that activated, the user is still forced to log in using wordpress. I see the email box slide down but it redirects anyways. Is this a problem with my settings or is it a problem with the plugin add-on itself?

Any help would be greatly appreciated.