Air conditioning no longer cools

We were at the climate service there today they told us that 125G were still in the plant, the rest was filled up incl. ÖL. The pressure would be ok and he would also hold. The employee there said however that he still does not cool. When pressing the AC switch one sees how the speed increases. The fuse on the battery are all ok The cooler fan (I see only one big one) does not start with! It only starts for 5-6 seconds when 90 degrees are reached. Error memory shows only one Entry on “Adaption Fresh/circuit flap not successful” I also can not get deleted, new adaptation (final position) does not bring success, however, the circulating air will still switch when you press the button.The air-conditioning lines in the engine compartment are also not cold What can it be that you are not cooled?