I need some help figuring out what to do here
2013-02-12 18:43:06 [sEVERE] [ForgeModLoader] FML has detected item discrepancies
2013-02-12 18:43:06 [sEVERE] [ForgeModLoader] Missing items : {4080=Item 4080, Type shedar.mods.ic2.nuclearcontrol.items.ItemNuclearControlMain, owned by IC2NuclearControl, ordinal 0, name blockNuclearControlMain, claimedModId null, 4081=Item 4081, Type ic2.advancedmachines.common.ItemAdvancedMachine, owned by AdvancedMachines, ordinal 0, name blockAdvMachine, claimedModId null, 4082=Item 4082, Type immibis.ars.ItemUpgrades, owned by AdvancedRepulsionSystems, ordinal 0, name null, claimedModId null, 4086=Item 4086, Type factorization.common.BlockLightAir, owned by factorization, ordinal 0, name FZ Lightair, claimedModId null, 4087=Item 4087, Type factorization.common.ItemFactorization, owned by factorization, ordinal 0, name FZ factory, claimedModId null, 31993=Item 31993, Type vswe.stevescarts.Items.ItemCartComponent, owned by StevesCarts, ordinal 0, name null, claimedModId null, 1024=Item 1024, Type com.eloraam.redpower.core.ItemParts, owned by RedPowerBase, ordinal 0, name null, claimedModId null, 31992=Item 31992, Type vswe.stevescarts.Items.ItemCartModule, owned by StevesCarts, ordinal 0, name null, claimedModId null, 1025=Item 1025, Type com.eloraam.redpower.core.ItemParts, owned by RedPowerBase, ordinal 1, name null, claimedModId null, 31994=Item 31994, Type vswe.stevescarts.Items.ItemCarts, owned by StevesCarts, ordinal 0, name null, claimedModId null, 4079=Item 4079, Type mekanism.generators.common.ItemBlockGenerator, owned by MekanismGenerators, ordinal 0, name null, claimedModId null}
2013-02-12 18:43:06 [sEVERE] [ForgeModLoader] Mismatched items : {4083=(Item 4083, Type immibis.ars.ItemMachines, owned by AdvancedRepulsionSystems, ordinal 0, name null, claimedModId null, Item 4083, Type mekanism.generators.common.ItemBlockGenerator, owned by MekanismGenerators, ordinal 0, name null, claimedModId null), 4084=(Item 4084, Type immibis.ars.BlockForceField, owned by AdvancedRepulsionSystems, ordinal 0, name null, claimedModId null, Item 4084, Type shedar.mods.ic2.nuclearcontrol.items.ItemNuclearControlMain, owned by IC2NuclearControl, ordinal 0, name blockNuclearControlMain, claimedModId null), 4085=(Item 4085, Type factorization.common.ItemBlockResource, owned by factorization, ordinal 0, name FZ resource, claimedModId null, Item 4085, Type ic2.advancedmachines.common.ItemAdvancedMachine, owned by AdvancedMachines, ordinal 0, name blockAdvMachine, claimedModId null), 1282=(Item 1282, Type com.eloraam.redpower.core.ItemParts, owned by RedPowerLogic, ordinal 0, name null, claimedModId null, Item 1282, Type xcompwiz.mystcraft.ItemDecayBlock, owned by Mystcraft, ordinal 0, name null, claimedModId null), 1280=(Item 1280, Type xcompwiz.mystcraft.BlockBookReceptacle, owned by Mystcraft, ordinal 0, name null, claimedModId null, Item 1280, Type com.eloraam.redpower.core.ItemParts, owned by RedPowerLogic, ordinal 0, name null, claimedModId null), 31997=(Item 31997, Type atomicscience.common.ASIt, owned by AtomicScience, ordinal 0, name null, claimedModId null, Item 31997, Type vswe.stevescarts.Items.ItemCartModule, owned by StevesCarts, ordinal 0, name null, claimedModId null), 31999=(Item 31999, Type atomicscience.common.jiqi.ItWenDuBiao, owned by AtomicScience, ordinal 0, name null, claimedModId null, Item 31999, Type vswe.stevescarts.Items.ItemCarts, owned by StevesCarts, ordinal 0, name null, claimedModId null), 31998=(Item 31998, Type atomicscience.common.fenlie.ItYou, owned by AtomicScience, ordinal 0, name null, claimedModId null, Item 31998, Type vswe.stevescarts.Items.ItemCartComponent, owned by StevesCarts, ordinal 0, name null, claimedModId null)}
2013-02-12 18:43:07 [FINER] [ForgeModLoader] THROW
codechicken.core.NetworkClosedException
at codechicken.core.ClientUtils.getServerIP(ClientUtils.java:73)
at codechicken.core.ClientUtils.isLocal(ClientUtils.java:87)
at codechicken.nei.ClientPacketHandler.handleSMPCheck(ClientPacketHandler.java:107)
at codechicken.nei.ClientPacketHandler.handlePacket(ClientPacketHandler.java:26)
at codechicken.core.PacketCustom$ClientPacketHander.handle(PacketCustom.java:90)
at codechicken.core.PacketCustom$CustomPacketHandler.onPacketData(PacketCustom.java:59)
at cpw.mods.fml.common.network.NetworkRegistry.handlePacket(NetworkRegistry.java:243)
at cpw.mods.fml.common.network.NetworkRegistry.handleCustomPacket(NetworkRegistry.java:233)
at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:71)
at ayh.a(NetClientHandler.java:1483)
at di.a(SourceFile:59)
at cg.b(TcpConnection.java:458)
at cpw.mods.fml.client.FMLClientHandler.disconnectIDMismatch(FMLClientHandler.java:527)
at cpw.mods.fml.common.FMLCommonHandler.disconnectIDMismatch(FMLCommonHandler.java:454)
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:1537)
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)