Print stops After a few layers

I have a Bambulab a1mini and for some while the print jobs stops randomly, in the beginning only sometimes but it got worse over time, now the print stops after just a few layers and starting it again doesn’t do anything. When the print stops the fan is spinning constantly at 100%. When I have the printer set to English, it only says unknown error in German it has an explanation: Der druck wurde wegen einem Problem mit der Düsentemperatur gestoppt in English the print job was stopped because of a problem with the nozzle temperature. Searching for the error in the internet didn’t bring any result. I hope someone can help me this way, because it’s slowly driving me me crazy.