The 50Volts goes to a LOT of PLACES........it may take time to find your problem.
"Divide and Conquer"......... What ?
You have to isolate the problem some way! I'm guessing your problem is with the 'Magic lines' or
'Colored Lines', what ever they are called. I'm a 'Magic Squares' guy, so I don't own this Pin.
I would pull the fuses shown in the diagram here, that way you can isolate the Top from the Bottom
circuits.
*** 'Bingopodcast' can probably help more than me though!
Just my thoughts......