smart-home-nodejs: Example not working with Simulator and `/smarthome/update` returns 500

Hello and thanks a lot for this guidance.

Tried to run an example using README. I deployed to firebase, but when starting a test on Simulator, it gives me “We’re sorry, but something went wrong. Please try again.”

On the client of displayed app devices are adding successfully. Request from to change device state returns code 500 with payload: {reportStateError: "Requested entity was not found."}

Should I make any other changes for example source code before deployment? Or maybe you have any other ideas