Hi riscatto, that happened to me a couple of years ago. I disconnected the battery and let the car sit for one hour undisturbed so all the modules would reset. Everything came back to life after I reconnected the battery. Give that a try and see if that works!
just to let you know, I called Roadside Assistance, they checked everything it showed on diagnostics three blown fuses, when checked they were all okay. Disconnected battery and reconnected no difference, so he suggested booking in for full diagnostic check all things pointing to failed ACM module?, booked in have to wait 5 weeks. Used my son's car for a couple of days then last night I wanted to use RR started up with the Radio playing and everything back to life. Not cancelled diagnostic check just yet will see how things go for a couple of weeks.