Code Chicken Error

[SXScarecrow]

I wasn't sure where to put this specifically, since there is no dedicated forum for custom pack issues, so I'll stick it here. If I have broken a rule I'm sorry.

I'm having issues with a custom pack I'm trying to playtest for a server that I am admin on. After I updated Atomic Science and Electric Expansion, I get this weird error that happens whenever I log into the the server, just before the world starts to render. I need help with this urgently, since all the other staff can get on the server fine, and they're waiting for me!

---- Minecraft Crash Report ----

// Don't be sad, have a hug! <3

Time: 24/02/13 21:48

Description: Unexpected error

java.lang.RuntimeException: codechicken.core.NetworkClosedException

at com.google.common.base.Throwables.propagate(Throwables.java:160)

at cpw.mods.fml.client.FMLClientHandler.haltGame(FMLClientHandler.java:191)

at cpw.mods.fml.common.FMLCommonHandler.raiseException(FMLCommonHandler.java:196)

at codechicken.core.ClientUtils.getServerIP(ClientUtils.java:78)

at codechicken.core.ClientUtils.isLocal(ClientUtils.java:87)

at codechicken.nei.ClientHandler.onWorldChange(ClientHandler.java:191)

at codechicken.nei.ClientHandler.tickStart(ClientHandler.java:159)

at cpw.mods.fml.common.SingleIntervalHandler.tickStart(SingleIntervalHandler.java:16)

at cpw.mods.fml.common.FMLCommonHandler.tickStart(FMLCommonHandler.java:120)

at cpw.mods.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:362)

at net.minecraft.client.Minecraft.l(Minecraft.java:1455)

at net.minecraft.client.Minecraft.J(Minecraft.java:846)

at net.minecraft.client.Minecraft.run(Minecraft.java:771)

at java.lang.Thread.run(Unknown Source)

Caused by: codechicken.core.NetworkClosedException

at codechicken.core.ClientUtils.getServerIP(ClientUtils.java:73)

I tried deleting my .techniclauncher folder and the launcher itself and it STILL wouldn't work. I know the pack itself works. Any suggestions?