Air conditioning switches off sporadic

Good day to the circuit! My air conditioning has the following problem: It cools quickly and wonderfully and yesterday I was at the climate maintenance and everything has been filled tight and new etc., so no problems about this, it cools now even better with icy wind under full load Now to the actual problem, which before the climate maintenance was already already present, however, I thought it would be with a possibly too low filling level together: I let the climate run yesterday on full load in the stand(-gas) 25 minutes and everything perfect. However, if I drive, then it turns off sometimes and does not start again, only when I manually operate the switch and switch it on again after 3min. I know that the climate itself switches off at short notice with certain factors, bspw. at full gas or when the outside temperature is < 0°C etc. And that's exactly what I think comes to this error: I drive and everything is wonderful and at some point it is out and doesn't go on again ... Does someone know such a mistake or knows/know what this might be?