Auto Devops default backend 404

Running Auto Devops with GKE. Everything works fine during environment creation and configuration. Now, it comes the time to go to production.
I configure the base domain to point to and recreate the production environtment. Than I get the url and it works fine.
The problem is that when I try to reach I get the error default backend - 404
So, how do I configure the default backend entry to point to the app?