Myself and 2 others are having random game crashes today while in our town. They said when the move away from town they stopped crashing. I am getting errors about piston extensions as I hope you see in the report.

What I expected to happen was...:
For the game to run fine and not crash?

What actually happened was...:
The game crashed over and over.

Steps to Reproduce:
1. Log on to the server and wait a couple mins. then crash
2. Do it again? The same thing keeps happening.
3. ...