[MC-81266] When I log onto "mc.fearpvp.com" as soon as the world is loaded as well as chat my minecraft crashes

Put the summary of the bug you're having here

What I expected to happen was...:
I expected the world to load properly so I could play on the server

What actually happened was...:
The game crashed

Steps to Reproduce:
1. Launch minecraft
2. ... log onto the server
3. ... wait for the world to load.. then next thing you know it crashes

Linked issues

Can you please attach a crash log?

This ticket is invalid as it relates to a modified or 3rd party client, server, or launcher.

Any non-standard client/server/launcher build needs to be taken up with the appropriate team, not Mojang.
Any plugin issues need to be addressed to the creator of the plugin or resource pack.
This site is for addressing issues related to the base unmodded Minecraft; Bukkit, Forge, Optifine, or any other modded system invalidates your ticket, unless it can be shown to happen in Vanilla.
Additionally, if you have problems on large-scale modded servers, please report it to their site. It's probably not a bug in Vanilla Minecraft.