"I thought we started brightly and got ourselves in front only to shoot ourselves in the foot by conceding two sloppy goals," Ferguson said after the game.
"It was vital that we had Barnsley chasing the game but poor concentration levels left us in that position and we are not learning our lesson.
"But we have to start doing that quickly otherwise we are going to be in for one hell of a fight.
"We still have 93 points to play for and I firmly believe we will keep ourselves in this division."