Crash with cables?

[B1u3M0nk3y]

java.lang.ArrayIndexOutOfBoundsException: -1
at powercrystals.minefactoryreloaded.block.transport.BlockRedNetCable.activated(BlockRedNetCable.java:152)
at powercrystals.minefactoryreloaded.block.BlockFactory.func_149727_a(BlockFactory.java:97)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78760_a(PlayerControllerMP.java:326)
at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1436)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1942)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:962)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:887)
at net.minecraft.client.main.Main.main(SourceFile:148)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Stacktrace:
at powercrystals.minefactoryreloaded.block.transport.BlockRedNetCable.activated(BlockRedNetCable.java:152)
at powercrystals.minefactoryreloaded.block.BlockFactory.func_149727_a(BlockFactory.java:97)
at net.minecraft.client.multiplayer.PlayerControllerMP.func_78760_a(PlayerControllerMP.java:326)
at net.minecraft.client.Minecraft.func_147121_ag(Minecraft.java:1436)