While I was sleeping on the bed, I got disconnected from my friend's server, then I join back, I was still sleeping in bed, then, my game just completely crashed, then now, I joined back, nothing happens for now

My friend is on PC (Windows 10 Edition), I got disconnected because my friend's pc screen was off, but my friend's minecraft is still running, I asked my friend to turn on the pc, so now, I joined back, I was still sleeping in bed, then, my game crashed