500e: Allow error message to control charging system

Hello together, after just under 13tkm our Luigi has said goodbye today with the above. No charging is possible anymore, neither via the type 2 charging cable nor with the emergency charging brick. The error message is also permanently displayed during the ride. I just informed the breakdown service via the Fiat hotline, after the local Fiat dealer wanted to give me an appointment only from the middle of next week(!). Tomorrow we towed the car. Has someone had this before? Is there a chance that this only Is there a sensor error or the like? Or is there a new battery control unit due? The car still has a guarantee, so hopefully I don’t have to worry about costs. But I can’t do without the car for days. Does Fiat provide a replacement vehicle in such cases? Greetings Tom