The 21-year-old had been booked for dissent while warming up in the first half and he admits he should have known better.
Church told the club's official website: "For my first booking I didn't think it was a penalty, but I shouldn't have said anything. It was a moment of stupidity from me - it had nothing to do with me and it wouldn't have changed anything, but it's a learning curve and something I regret doing.
"It's a good lesson for everyone else - it was one of those moments where you feel like you've been robbed, but I've got to learn from that and learn not to do it again.
"For the second one I can't really understand what he's booked me for, I was celebrating with the crowd and I got pushed in but again it's a learning curve."