Firmware upgrade issues with CubeBlack

I have upgraded my firmware to 4.0.0 however I get a error message “Config error: Failed to init CubeBlack - sensor mi” I know there was a service bulletin relating to Cube Blacks. However I have been using my Cube Black with Ardurover 3.5.0 without any problems. I was wondering of anyone else has experienced similar issues?

Kind Regards,