FTB Server problem

[21:48:20] [Netty IO #6/ERROR] [FML]: NetworkDispatcher exception
java.io.IOException: An established connection was aborted by the software in your host machine
	at sun.nio.ch.SocketDispatcher.writev0(Native Method) ~[?:1.8.0_51]
	at sun.nio.ch.SocketDispatcher.writev(Unknown Source) ~[?:1.8.0_51]
	at sun.nio.ch.IOUtil.write(Unknown Source) ~[?:1.8.0_51]
	at sun.nio.ch.SocketChannelImpl.write(Unknown Source) ~[?:1.8.0_51]
	at io.netty.channel.socket.nio.NioSocketChannel.doWrite(NioSocketChannel.java:249) ~[NioSocketChannel.class:?]
	at io.netty.channel.AbstractChannel$AbstractUnsafe.flush0(AbstractChannel.java:680) [AbstractChannel$AbstractUnsafe.class:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.forceFlush(AbstractNioChannel.java:266) [AbstractNioChannel$AbstractNioUnsafe.class:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:488) [NioEventLoop.class:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447) [NioEventLoop.class:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341) [NioEventLoop.class:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101) [SingleThreadEventExecutor$2.class:?]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_51]
[21:48:21] [Server thread/INFO] [net.minecraft.network.NetHandlerPlayServer]: maxxpowerss lost connection: TranslatableComponent{key='disconnect.genericReason', args=[Internal Exception: java.io.IOException: An established connection was aborted by the software in your host machine], siblings=[], style=Style{hasParent=false, color=null, bold=null, italic=null, underlined=null, obfuscated=null, clickEvent=null, hoverEvent=null}}
[21:48:21] [Server thread/INFO] [net.minecraft.server.MinecraftServer]: maxxpowerss left the game