Fatal bug on game crash

[Granger]

My guess is that you got killed because you either AFK'd near the root (a no-no) or logged in next to it and someone there was waiting for it too that made short work of you - and then have been transported into a cellar (the usual procedure so you can't see what's going on in the base of the one who ended you).

Do I hope that you will help me get the character back?

You can hope but it likely won't happen.