Polar 66, error 861 & brk-eeror 32

What is this error? Where to get their transcript?

If the error 861-restarts spontaneously and gives this error ...

 

Dear Sir:
This error from Polar 861+BRK ERROR in his machine,
BRK ERROR :A)Test the power supply in G2 +test power supply at terminal x500 on the keyboard
B) Check data cable from CP plug X3 TO Keyboard computer x503
1)# 861Polar 66 is the keyboard computer is sometimes Not in position to continue operation
correctly while the main computer continues working.
2) If his machine has version software 3.0 and higher , the KCxxx must be replaced,
3) IF his machine version is older from 3.0 must be re-equipped with V3.0 or Higher.