internal server error keeps on coming up when i join a hexxit server
here is the error thingy magig from the server
2013-09-02 20:43:58 [WARNING] [Minecraft-Server] Failed to handle packet for sha
dowflameG/119.247.164.62: net.minecraft.util.ReportedException: Ticking player
net.minecraft.util.ReportedException: Ticking player
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerM
P.java:362)
at net.minecraft.network.NetServerHandler.func_72498_a(NetServerHandler.
java:308)
at net.minecraft.network.packet.Packet10Flying.func_73279_a(SourceFile:1
36)
at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:4
61)
at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.
java:134)
at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenT
hread.java:53)
at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747
_b(SourceFile:30)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.jav
a:677)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(Dedicated
Server.java:275)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.jav
a:573)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.NullPointerException
at net.minecraft.entity.DataWatcher.func_75681_e(SourceFile:104)
at net.minecraft.entity.EntityLiving.func_94056_bM(EntityLiving.java:310
7)
at net.minecraft.entity.EntityLiving.func_70023_ak(EntityLiving.java:309
2)
at chocolate.mods.BD.items.ItemArmorHelmetScouter.onUpdateEquiped(ItemAr
morHelmetScouter.java:42)
at chocolate.mods.BD.items.ItemArmorBase.onArmorTickUpdate(ItemArmorBase
.java:18)
at net.minecraft.entity.player.InventoryPlayer.func_70429_k(InventoryPla
yer.java:348)
at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.ja
va:591)
at net.minecraft.entity.EntityLiving.func_70071_h_(EntityLiving.java:858
)
at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.j
ava:339)
at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerM
P.java:326)
... 11 more