Configurator just showing login page

I have installed Home Assistant with Hassbian. I have also created a remote domain for the UI. And added Configurator. But when I fixed the remote domain the Configurator won’t open anymore. You get to the Home Assistant login page in the iframe. And if I log in. The iframe contains the whole Home Assistant UI. So it’s like filming into the screen you’re watching on. A never ending tunnel.

How do I fix this?