Please try performing a hard reset on your instrument. To do this:
First power off your instrument with the rocker switch in the back where the power comes in.
Next hold down the read button on the front left of the instrument.
Keep this button held down while you turn the power back on and keep it held down for approximately 10 seconds.
After 10 seconds you can release the button, you will see the lights on the front of the instrument start to flash.
When the instrument has finished with the reset procedure you should hear it beep and the green power light should be the only light on.
If you are unable to move past this error message after the reset please contact our service department at firstname.lastname@example.org