Me and my friend were playing in my local world (LAN) and we died, both. He clicked give up then respawned, but i didn't. Because game crashed on i click "give up". After i relaunched the game, i was alive on the place, but mobs can't hit me. Then, i opened the world to local(lan) again, and then i died instantly on doing it. I clicked "give up" again, but it didn't work. So, i have wait the time that someone can revive me, so it finished, THEN the game crashed. And here's the crash report. Hope you can fix something with it.
crash-2018-10-13_23.03.55-server.txt

The crash report that happened first time i died with my friend, was about Backpacks mod by Brad, which is here: https://drive.google.com/open?id=1imrmWUdJW02zBDkRHrlnV5ZX1AaAvrpr

And what did he say about it?

So will it happen again or is it fixed now?

To be honest, i didn't try if it will crash again. If you want me do, i can do it.
If not, you can close this.
But losing my backpack and having the world corrupted was painful... :D

Make a backup! But I was talking about does the second still occur or can you open the world to lan now?

ah no i tried it few times (4-5) it crashed at all with the same crash. so i had to delete the world.

Can you create a new world, make it crash and then send it to me, so I can try to fix it?

Can you report this bug to the backpack mod? The second crash seems to be a follow crash. I don't know how to fix that one.

I already sent a message has link of this page to Brad.

Are you still there?

Ah, sorry for forgot this bug. I tried this with my friend a few times while playing, and couldn't reproduce it again. You can close it if you wish. Thanks so much for helping tho

Ok good to hear that, just reopen this issue if it happens again. Have a great time!