Hi
As you mentioned "I have truck doctor and fitted new levers".
=> I am not sure whether you have replaced the new hydraulic joystick or Accelerator (drive potentiometer).
FYI :
Code 32: the signals of ACC are out of range.
Therefore, you need:
=> To do calibration the Acc by Linde Truck Doctor
=> Check the wiring from Acc to the controller
=> If the error code still happens, you must replace the Acc by the new one.
Code 55 & 69: Are all related to the power module 1A1.
From my experience, when code No. 32 is solved then the following codes are often disappeared too.
In case, you have already cleared the error code No 32 but the code No 55 always appears on the current error code window, I assume that you have no way to change the new power module 1A1.
Good luck