Need help with wallpanel app

So the appdaemon.yaml file for WallPanel. I had to use ha_url: http://hassio/homeassistant instead of my local url for appdaemon to connect. I can get the dashboard to come up with a browser, but the WallPanel app I can’t figure out why it won’t connect.
I have a ddns I set up that works fine with browsers, or the local ip as well. They work fine, but the app won’t pull it up.

I have the exact same problem. Do I need to set up MQTT??