AndroidPlayer: Display Grafana Dashboard

Hello,

I used the DSDevices DSCS9 (Android). I want to display a Grafana dashboard on these devices. Unfortunately I have problems with this.

The dashboard is publicly accessible. Access to Grafana works via http (internal)
(http://grafanahost:3000/d/17nS7Xwnk/my-dashboard?orgId=1&from=1651462914924&to=1651484514924&kiosk=tv)

Unfortunately, nothing is displayed in Xibo. The screen stays white.
What can I do?