Why does my Minecraft crash when I place a Wind Turbine down from the mod Mekanism Generators?

Why does my Minecraft crash when I place a Wind Turbine down from the mod Mekanism Generators?

Added (1). The Crash log is here

Added (2). ---- Minecraft Crash Report ----
// I let you down. Sorry.

Time: 12/3/13 4:21 PM
Description: Ticking tile entity

java.lang.NullPointerException
at mekanism.api.Object3D.getFromSide(Object…
at mekanism.common.util.CableUtils.emit(Cab…
at mekanism.generators.common.tileentity.Ti…
at mekanism.generators.common.tileentity.Ti…
at mekanism.common.tileentity.TileEntityBas…
at net.minecraft.world.World.func_72939_s(W…
at net.minecraft.world.WorldServer.func_729…
at net.minecraft.server.MinecraftServer.fun…
at net.minecraft.server.MinecraftServer.fun…
at net.minecraft.server.integrated.Integrat…
at net.minecraft.server.MinecraftServer.run…

Your best option is to contact the mod author. Give him the full error log and ask for help.

If you can't get in touch with him or her, try reinstalling the mod.