I don't know the game. If the pop bumper scores 1 point. Sounds like that is your issue. Check the pop switch below the playfield. You might try slipping a piece of paper or thin card board between the contacts on the pop switch before game start. You can also try this with the other 1 point switches. One other possibility. Check the solder lugs on the back of all the switches, once in a while the switch blade solder tabs get bumped and make contact. Even had a loose strand from a wire make the jump to the back of the solder tab.