netty crash broken pipe

[23:50:19] [Netty Server IO #4/ERROR] [FML]: NetworkDispatcher exception
java.io.IOException: Broken pipe
	at sun.nio.ch.FileDispatcherImpl.write0(Native Method) ~[?:1.8.0_212]
	at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:47) ~[?:1.8.0_212]
	at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) ~[?:1.8.0_212]
	at sun.nio.ch.IOUtil.write(IOUtil.java:51) ~[?:1.8.0_212]
	at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) ~[?:1.8.0_212]
	at io.netty.channel.socket.nio.NioSocketChannel.doWrite(NioSocketChannel.java:405) ~[minecraft_server.1.12.2.jar:?]
	at io.netty.channel.AbstractChannel$AbstractUnsafe.flush0(AbstractChannel.java:938) [minecraft_server.1.12.2.jar:?]
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.forceFlush(AbstractNioChannel.java:367) [minecraft_server.1.12.2.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:671) [minecraft_server.1.12.2.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:612) [minecraft_server.1.12.2.jar:?]
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:529) [minecraft_server.1.12.2.jar:?]
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:491) [minecraft_server.1.12.2.jar:?]
	at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:905) [minecraft_server.1.12.2.jar:?]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]