cards aren't always given on fouls in the box. As i previously posted Acree dribbled into the box where he was fouled.
I'm pretty sure it wasn't a hand ball because the ref would have called that right away and he let play continue for a good 7 or so seconds before he blew the whistle. When he blew his whistle was when he saw the AR waving his flag because he had seen the foul.
It doesn't matter though because Irmo got the pk but still lost the game.