2013-07-08 06:05:14 [SEVERE] [ForgeModLoader] A critical server error occured handling a packet, kicking 1911390
java.lang.NullPointerException
        at com.google.common.collect.ImmutableSetMultimap$Builder.putAll(ImmutableSetMultimap.java:227)
        at net.minecraftforge.common.ForgeChunkManager.forceChunk(ForgeChunkManager.java:738)
        at codechicken.chunkloader.ChunkLoaderManager$TicketManager.addChunk(ChunkLoaderManager.java:112)
        at codechicken.chunkloader.ChunkLoaderManager$ChunkLoaderOrganiser.forceChunks(ChunkLoaderManager.java:237)
        at codechicken.chunkloader.ChunkLoaderManager$ChunkLoaderOrganiser.addChunkLoader(ChunkLoaderManager.java:184)
        at codechicken.chunkloader.ChunkLoaderManager.addChunkLoader(ChunkLoaderManager.java:694)
        at codechicken.chunkloader.TileChunkLoaderBase.activate(TileChunkLoaderBase.java:125)
        at codechicken.chunkloader.TileChunkLoaderBase.onBlockPlacedBy(TileChunkLoaderBase.java:85)
        at codechicken.chunkloader.BlockChunkLoader.func_71860_a(BlockChunkLoader.java:119)
        at net.minecraft.item.ItemBlock.placeBlockAt(ItemBlock.java:248)
        at net.minecraft.item.ItemBlock.func_77648_a(ItemBlock.java:119)
        at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:149)
        at net.minecraft.item.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:425)
        at net.minecraft.network.NetServerHandler.func_72472_a(NetServerHandler.java:553)
        at net.minecraft.network.packet.Packet15Place.func_73279_a(SourceFile:58)
        at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:461)
        at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:134)
        at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
        at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:275)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
2013-07-08 06:05:14 [WARNING] [Minecraft-Server] Failed to handle packet for smene/216.252.85.52: java.lang.NullPointerException
java.lang.NullPointerException
        at com.google.common.collect.ImmutableSetMultimap$Builder.putAll(ImmutableSetMultimap.java:227)
        at net.minecraftforge.common.ForgeChunkManager.forceChunk(ForgeChunkManager.java:738)
        at codechicken.chunkloader.ChunkLoaderManager$TicketManager.addChunk(ChunkLoaderManager.java:112)
        at codechicken.chunkloader.ChunkLoaderManager$ChunkLoaderOrganiser.forceChunks(ChunkLoaderManager.java:237)
        at codechicken.chunkloader.ChunkLoaderManager$ChunkLoaderOrganiser.addChunkLoader(ChunkLoaderManager.java:184)
        at codechicken.chunkloader.ChunkLoaderManager.addChunkLoader(ChunkLoaderManager.java:694)
        at codechicken.chunkloader.TileChunkLoaderBase.activate(TileChunkLoaderBase.java:125)
        at codechicken.chunkloader.TileChunkLoaderBase.onBlockPlacedBy(TileChunkLoaderBase.java:85)
        at codechicken.chunkloader.BlockChunkLoader.func_71860_a(BlockChunkLoader.java:119)
        at net.minecraft.item.ItemBlock.placeBlockAt(ItemBlock.java:248)
        at net.minecraft.item.ItemBlock.func_77648_a(ItemBlock.java:119)
        at net.minecraft.item.ItemStack.func_77943_a(ItemStack.java:149)
        at net.minecraft.item.ItemInWorldManager.func_73078_a(ItemInWorldManager.java:425)
        at net.minecraft.network.NetServerHandler.func_72472_a(NetServerHandler.java:553)
        at net.minecraft.network.packet.Packet15Place.func_73279_a(SourceFile:58)
        at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:461)
        at net.minecraft.network.NetServerHandler.func_72570_d(NetServerHandler.java:134)
        at net.minecraft.network.NetworkListenThread.func_71747_b(NetworkListenThread.java:53)
        at net.minecraft.server.dedicated.DedicatedServerListenThread.func_71747_b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677)
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:275)
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:573)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:470)
        at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
2013-07-08 06:05:14 [INFO] [STDOUT] Unloading Player: smene