Multiplayer Host Game Crashes Leaving Nethworlds

I was hosting a LAN Multiplayer game when we made a nether portal to go to the netherworld and everything was going fine until I died and it went to send me back to the spawn point and it completely crashed out to my desktop. I reloaded the game thinking it was just a glitch and maybe it will work this time, I went back through the portal to retrieve my gear and stuff (all was gone not taken by other players either) so I was gonna go back to my house and make me some more gear, but when I went back through the portal the game crashed again completely to desktop.