[Frontend Development] Add-Ons screen blank

Hello,
I am trying to do some frontend development with a production instance of HA Core on http://homeassistance.local:8123.

I followed the documentation provided on Frontend development | Home Assistant Developer Docs.

I can reach my frontend on http://localhost:8124 successfully, and can access the most of my production core instance.
But if i try to see the add-ons clicking on “Settings → Add-ons” i get a blank screen.

What i am doing wrong?