"Graeme has not given out the riot act. He is very disappointed. He takes it personal. He is gutted," Parkes said after the 2-0 defeat at the Walkers Stadium.
"He can't bring himself to face the media tonight which is quite unusual. He is so disappointed. I don't think he has got his act together to come and speak to the media.
"It's the lowest Graeme has been since he's been manager here. He's never had a run like this.
"He's had three years of success and this run has come as a bit of a shock to be where we are at the moment."