Okay I need some help. I managed to get my last two gong pieces, but on…

Okay I need some help. I managed to get my last two gong pieces, but one of my villagers finished putting in one of the gong pieces the other one that was carrying the last piece dropped it to go celebrate and now I have no idea what to do!!!! send me an email if you have an answer bklyangel89@yahoo.com