With 2 outs and runners on 2nd and 3rd, a ground ball is hit to SS who bobbles the ball and follows that up with a bad throw to 1st. After running through the bag, 1st base coach tells runner to go to 2nd where she is thrown out on a close play. The team on defense claims that the 2nd run does not count. Both umpires admit they didn't see it. How is a decision made in this case?