Question about the first period of tonight’s game (1/31)

Maybe halfway through the first period, there was a penalty called. We missed it, but saw the CBJ coach challenge it. Ultimately, the penalty (whatever it was) was taken back because the puck went off the goalie’s stick and then Crouse, not just the goalie like the ref originally thought.

At first I thought it was because the puck went out, but that would have just been a fave off, not a penalty. Hoping someone here can explain. Thank you!