Energy Dashboard: Entity not defined. Hoymiles HM-800 via MQTT


I have successfully connected the Hoymiles HM-800 inverter with MQTT. To be more precise, I connected the ahoy DTU, which I use to read the inverter, to HA.
Unfortunately, an error occurred when integrating the solar panel via the energy dashboard:
Entity not defined
Check the integration or your configuration that provides:

The sensor sends the correct data. (yield daily)

What can I do?

Thanks very much.

Could you fix this?

How did you connect the Ahoy DTU to HA’s MQTT? I am using Mosquito and I configured the IP of my HA instance and port 1883 in the Ahoy Webinterface but Ahoy still shows “MQTT is not connected”.

Any advice?