HC Char died due to lost connection

I’m sorry to post this in the wrong section,
But I don’t know why I can’t create a topic in technical support.

I play on Playstation and I got a random disconnect that kicks me out of the game and back to the character selection.
It shows me my offline characters and I click on the ‘online’ button to recconect to the server.
Everything is fine. I select my lvl 84 HC paladin again and he is still in game!
So I quit the game, start it again and now my character is dead!

Why the hell does he die due to a disconnect?!

Is it possible to revive my character?