Tekkit lite ticking screen...ı really need help.

[çağlar]

My friend cannot connect to my server. and he got that screen.

we got the same version of tekkit lite. how can ı fix this

-- Head --

Stacktrace:

at asw.d(SourceFile:35)

at asw.b(SourceFile:23)

at net.minecraft.client.Minecraft.a(Minecraft.java:2080)

at net.minecraft.client.Minecraft.a(Minecraft.java:2025)

at cpw.mods.fml.client.FMLClientHandler.disconnectIDMismatch(FMLClientHandler.java:529)

at cpw.mods.fml.common.FMLCommonHandler.disconnectIDMismatch(FMLCommonHandler.java:464)

at cpw.mods.fml.common.network.ModIdMapPacket.execute(ModIdMapPacket.java:89)

at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:102)

at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:67)

at ayh.a(NetClientHandler.java:1483)

at di.a(SourceFile:59)

at cg.b(TcpConnection.java:458)

at ayh.d(NetClientHandler.java:240)

at ayk.c(GuiConnecting.java:49)

-- Affected screen --

Details:

Screen name: ~~ERROR~~ NullPointerException: null

asy

at asw.d(SourceFile:35)

at asw.b(SourceFile:23)

at net.minecraft.client.Minecraft.a(Minecraft.java:2080)

at net.minecraft.client.Minecraft.a(Minecraft.java:2025)

at cpw.mods.fml.client.FMLClientHandler.disconnectIDMismatch(FMLClientHandler.java:529)

at cpw.mods.fml.common.FMLCommonHandler.disconnectIDMismatch(FMLCommonHandler.java:464)

at cpw.mods.fml.common.network.ModIdMapPacket.execute(ModIdMapPacket.java:89)

at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:102)

at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:67)

at ayh.a(NetClientHandler.java:1483)

at di.a(SourceFile:59)

at cg.b(TcpConnection.java:458)

at ayh.d(NetClientHandler.java:240)

at ayk.c(GuiConnecting.java:49)

at net.minecraft.client.Minecraft.l(Minecraft.java:1539)

at net.minecraft.client.Minecraft.J(Minecraft.java:848)

at net.minecraft.client.Minecraft.run(Minecraft.java:773)

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

[Richs_Yard]

I'll be nice and ask you to fill out a proper Bug report, so people can actually solve your problem.