If I'm reading this correctly, the lineup card listed nine players and no subs, correct?
If this is the case, you have an unreported substitution the first time #13 bats as I explained above.
Next question - After #13 batted in the five hole, who batted next? If it was the batter listed in the six hole, no problems.
If it was the batter listed in the 5 hole, now you have an illegal substitution, since that batter was removed from the game when #13 batted and is now re-entering the game in a different place in the batting order. That would have to be appealed, but the result would be that the illegal sub player is restricted to the bench for the remainder of the game and may be declared out, depending on what happened during the at-bat.
Yes, 9 players, and no subs.
After #13 batted in the 5 hole, the player listed in the 5 hole on the card batted. #13 was not subbed in nor was she intended to be subbed in. She was a starter, and was intended to be a starter, he just forgot to put her on his lineup card turned in to the umpire.
They at no time made any substitutions. They batted a straight 10, with no DP/Flex. This is supposed to be against NFHS rules, and was clearly stated in the tournament rules as well.