Explorercraft Kick

[18:57:49] [Server thread/ERROR] [FML]: There was a critical exception handling a packet on channel TUT
io.netty.handler.codec.DecoderException: java.lang.RuntimeException: Couldn't find player Arouka
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:99) ~[MessageToMessageDecoder.class:?]
        at io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111) ~[MessageToMessageCodec.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(Defau                     ltChannelHandlerContext.java:337) ~[DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(Default                     ChannelHandlerContext.java:323) ~[DefaultChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785) ~[DefaultChannelPipeline.class:?]
        at io.netty.channel.embedded.EmbeddedChannel.writeInbound(EmbeddedChannel.java:169) ~[EmbeddedChannel.class:?]
        at cpw.mods.fml.common.network.internal.FMLProxyPacket.func_148833_a(FMLProxyPacket.java:77) [FMLProxyPacket.class:?]
        at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:212) [ej.class:?]
        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:165) [nc.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:659) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:335) [lt.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:547) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:427) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)[li.class:?]
Caused by: java.lang.RuntimeException: Couldn't find player Arouka
        at explorer.CommonProxy.getPlayer(CommonProxy.java:31) ~[CommonProxy.class:?]
        at explorer.ExplorerMod$MirrorMaker$ServerMirroredMarkedMap.<init>(ExplorerMod.java:308) ~[ExplorerMod$MirrorMaker$ServerMirroredMarkedMap.class:?]
        at explorer.ExplorerMod$MirrorMaker$MapRequestRegistry$1.result(ExplorerMod.java:387) ~[ExplorerMod$MirrorMaker$MapRequestRegistry$1.class:?]
        at explorer.ExplorerMod$MirrorMaker$MapRequestRegistry$1.result(ExplorerMod.java:385) ~[ExplorerMod$MirrorMaker$MapRequestRegistry$1.class:?]
        at explorer.util.KeyedRegistry.item(KeyedRegistry.java:20) ~[KeyedRegistry.class:?]
        at explorer.ExplorerMod$MirrorMaker$1.accept(ExplorerMod.java:374) ~[Exp                     lorerMod$MirrorMaker$1.class:?]
        at explorer.ExplorerMod$MirrorMaker$1.accept(ExplorerMod.java:372) ~[Exp                     lorerMod$MirrorMaker$1.class:?]
        at explorer.network.PassingChannel$IgnorePlayer.accept(PassingChannel.java:47) ~[PassingChannel$IgnorePlayer.class:?]
        at explorer.network.PassingChannel.receiveAsServer(PassingChannel.java:55) ~[PassingChannel.class:?]
        at explorer.network.PacketPipeline$Channel.receiveServer(PacketPipeline.java:286) ~[PacketPipeline$Channel.class:?]
        at explorer.network.PacketPipeline$ChannelizedPacket.handleServerSide(PacketPipeline.java:243) ~[PacketPipeline$ChannelizedPacket.class:?]
        at explorer.network.PacketPipeline.decode(PacketPipeline.java:120) ~[PacketPipeline.class:?]
        at explorer.network.PacketPipeline.decode(PacketPipeline.java:35) ~[PacketPipeline.class:?]
        at io.netty.handler.codec.MessageToMessageCodec$2.decode(MessageToMessageCodec.java:81) ~[MessageToMessageCodec$2.class:?]
        at io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:89) ~[MessageToMessageDecoder.class:?]
        ... 13 more