The Porcupines saw their home dominance this season come to an end after Patrick Razak's late strike proved to be the match-winner.
"We didn't go the way we usually play and that affected us. One of our players [Prince Acquah] sustained an injury very early in the game and had to re-strategise," Akakpo said.
"I think we were slightly ahead of Hearts of Oak in the first half and got some decent chances which we definitely had to score but it was unfortunate the strikers fluffed them.
"We started the second half very well but got punished due to a terrible mistake the defenders committed in the box. I think we didn't deserve the defeat because a point at least would've been enough for us," he added.
After dropping to 10th on the log with 14 points following the defeat, Kotoko will travel to Anyinase Cam Park to lock horns with debutants Karela United FC on Wednesday.