Control unit config menu file missing

I'm using SDC2160 Motor controller and roborun plus v2.1. After powering it and connecting to my laptop via USB, it shows " Control unit config menu file missing" and "Power unit config menu file missing". I tried updating the firmware but the "Update via USB " drop down arrow on roborun utility was greyed out. Using COM port, it detects the COM port5 correctly but it shows "Controller found on COM5. Resetting the controller...done. Waiting for device restart...error. The port is closed."How should I proceed? I have attached the error I'm getting.