I just picked up the machine and it played great for a few days then the ball stopped kicking up to the upper playfield. Coils 6, 12 and 13 won’t work. They are the VUK and upper flippers. I suck as a technician and both of mine are older so there’s no way they’ll be coming over anytime soon. Does anyone have an idea to troubleshoot? I’ve attached a link to the