Hello my name is***** do not rate until we are finished. I look forward to assisting and am very sorry to hear that you are having this problem. What is the exact and entire error it shows?
Lets try to reset it. Hold the [STOP] button and the [ERASE] simultaneously for three seconds or longer until the word "CLEAR” is displayed on the screen. Release the buttons and then select “YES” from the menu by using the “+” or “–“ button. Press the [ENTER] button.
Can you connect it to a computer and see if that changes? Usually that should only come up when connected to a computer.
Have you cleaned out the port on the recorder itself for the cable? Dust inside that port can make it think there is a cable connected.