Minecraft crashes when I go to a certain area on the map on my friends server. It will repeatedly do this until I get teleported away.

Put the summary of the bug you're having here

I thought I could roam freely around the admin town on my friends server.

What happened was, the game crashes repeatedly until I get teleported away.

Steps to Reproduce:
1. Enter Admin town through teleport.
2. Walk around for approximately 30 seconds.
3. Crash.
4. Log on to the server.
5. Instant Crash.