Rugging at cold start Fiat Tipo 1.4 16V

Our Fiat Tipo 1.4 16V, year 2019, does not take any gas after starting. But this happens only at temperatures of 0 degrees. It starts, engine runs, but does not take any gas. After about 20 s everything is ok and it goes quite normal. I tried to read out the error before, but nobody is in it. I have already told a buddy that it would be the cold running controller. I really don’t know any more, maybe someone can help me get the problem in the grip. Thanks already in advance.