serverlog

java.lang.NullPointerException
        at net.minecraftforge.fml.common.network.FMLOutboundHandler$OutboundTarget$4.selectNetworks(FMLOutboundHandler.java:132) ~[FMLOutboundHandler$OutboundTarget$4.class:?]
        at net.minecraftforge.fml.common.network.FMLOutboundHandler.write(FMLOutboundHandler.java:293) ~[FMLOutboundHandler.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:651) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:112) ~[MessageToMessageEncoder.class:?]
        at io.netty.handler.codec.MessageToMessageCodec.write(MessageToMessageCodec.java:116) ~[MessageToMessageCodec.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:706) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:741) ~[AbstractChannelHandlerContext.class:?]
        at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:895) ~[DefaultChannelPipeline.class:?]
        at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:240) ~[AbstractChannel.class:?]
        at net.minecraftforge.fml.common.network.simpleimpl.SimpleNetworkWrapper.sendTo(SimpleNetworkWrapper.java:249) [SimpleNetworkWrapper.class:?]
        at hellfirepvp.astralsorcery.common.data.research.ResearchManager.logoutResetClient(ResearchManager.java:270) [ResearchManager.class:?]
        at hellfirepvp.astralsorcery.common.event.listener.EventHandlerNetwork.onLogout(EventHandlerNetwork.java:38) [EventHandlerNetwork.class:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_670_EventHandlerNetwork_onLogout_PlayerLoggedOutEvent.invoke(.dynamic) [?:?]
        at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90) [ASMEventHandler.class:?]
        at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:185) [EventBus.class:?]
        at net.minecraftforge.fml.common.FMLCommonHandler.firePlayerLoggedOut(FMLCommonHandler.java:570) [FMLCommonHandler.class:?]
        at net.minecraft.server.management.PlayerList.func_72367_e(PlayerList.java:379) [mp.class:?]
        at net.minecraft.network.NetHandlerPlayServer.func_147231_a(NetHandlerPlayServer.java:804) [me.class:?]
        at net.minecraft.network.NetworkManager.func_179293_l(NetworkManager.java:455) [eo.class:?]
        at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:213) [md.class:?]
        at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:732) [MinecraftServer.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:387) [ld.class:?]
        at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:613) [MinecraftServer.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:471) [MinecraftServer.class:?]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_111]