I have a Laser War game from Data East that plays amazingly well, with the exception of one thing. Whenever I get two of the balls into the “bases” during play and I enter 3 ball multiball play, the machine ejects the 3rd ball into the shooting lane but then it keeps trying to eject additional balls into the lane (which there aren’t any so it’s just a really loud sound that doesn’t stop). The only way that I’ve found to stop it is to turn the game off and back on. Any thoughts on where to look to troubleshoot? I’m a new pinball machine owner and don’t know where to start.