As I said, logs into my Ps4 account at any time and I don't know who. I've already changed everything (password and even my email). I also activated the 2-step verification and still one logs into my account from another ps4 and throws me out. Can someone guess what I can do?
It may be that someone is trying to connect to your Ps4, only they can't.
I would call the support from 9:30 am you can call there