"Internal Server Error"

[turret001]

Launcher/pack Version: 1.2.5 (Tekkit 3.0.3)

Operating System: Windows XP

Version of Java: 6

Description of Problem: I get Internal Server Error while trying to connect my server.

Error Messages: Internal Server Error

Link to pastebin of log:

[iNFO] Sending serverside check to: turret001

2012-05-31 21:56:22 [WARNING] Failed to handle packet: java.lang.NullPointerException

java.lang.NullPointerException

	at codechicken.nei.NEIServerConfig.canPlayerUseFeature(NEIServerConfig.java:84)

	at codechicken.nei.NEIServerPacketHandler.sendPermissableActionsTo(NEIServerPacketHandler.java:178)

	at codechicken.nei.NEIServerPacketHandler.handlePacket(NEIServerPacketHandler.java:42)

	at codechicken.core.CoreUtils.handlePacket(CoreUtils.java:150)

	at codechicken.core.PacketCustom.recieve(PacketCustom.java:451)

	at net.minecraft.server.mod_CodeChickenCore.onPacket250Received(mod_CodeChickenCore.java:65)

	at net.minecraft.server.BaseMod.onPacket250Packet(BaseMod.java:74)

	at cpw.mods.fml.server.FMLBukkitHandler.handlePacket250(FMLBukkitHandler.java:381)

	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1444)

	at net.minecraft.server.Packet250CustomPayload.handle(SourceFile:46)

	at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

	at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:121)

	at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:78)

	at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)

	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)

	at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

My server is running on 3.0.4, but it appears to be i can't connect.

[turret001]

btw; server runs Java 7 on a Windows Server 2008 OS.

[battler23]

I got this error multiple times with Jre6, so I switched over to Java 7 update 4 and it fixed it.

[aldrigviking]

-disregard-