Codes are in the back of the software guide that came with the machine. "E0006: An error has occurred during measurement" i.e." an error of some type occurred during measurement" solution: " Eliminate the cause of the error and retry measurement"
The only other error code with a "6" in it is a E9006: "Counter overspeed".
The codes are vague and somewhat stupid. If it happened here, I'd clean the scale with alcohol.