If the light is a stop start error rather than you turning off it could be the battery isn’t holding sufficient charge. No experience of Ghiblis but a battery one it’s way out can cause other spurious errors.
I've had the air con issues three or four times, including when I picked the car up in the first place. Working fine on the passenger side, toasting the driver and ignoring any inputs on the driver side. I'm led to understand that this is some sort of actuator put by the time I've got it to the dealer its corrected itself.
It has always happened after being left for a while and, so far, has self corrected the next day. I've tried all sorts of things to reset it but nothing has worked other than leaving it.
The traction light was some sensor? That’s what the diagnostic tool threw out anyway, the sensor is only £6! But nobody in the UK has them as stock items so it’s a 1 week wait for it to arrive from Italy