I have just installed Shelly EM. It is running and displaying data on my own Lovelace dashboard. I am now trying to use it in the new HA Energy Dashboard. I added the entity as a grid source in the Energy configuration but the Dashboard just shows empty graphs and 0W consumption, When I go back to Configuration → Energy, the screen just says ‘Unknown Error - Go Back’
How do I reset the Energy dashboard to factory settings so I can try again?