What is the START signal that the M125-CCD sensor failed to send to the KM-ASSYM3-08 arm machine code?

What is the error id of 56 that was encountered when sending the START signal?

What could be the cause of
The error message "M125-CCD failed to send start signal to the arm" occurs when the CCD (charge-coupled device) sensor sends an incorrect signal to the robotic arm, impeding its movement. To resolve