City were blown away as the Norwegian minnows won 3-1, with City midfielder Rodri sent off in the second-half.
Ait-Nouri remarked afterwards: "To be honest today it was a tough game. We tried to push in the first-half and tried to score a goal. We made some mistakes in the first-half and they scored two goals.
“For sure we still will be together and we need to be ready for next week because we have one more game against Galatasaray at home.
“For sure we will prepare for the game against Wolves this Saturday and will try to give our best for the next week.
“We have one game against Galatasaray next week. We need to be ready, to prepare for the game in training.
“For sure, we’re still together because we have an unbelievable group. We will hopefully make a great game next week.”