Hello i have an error after a while and my server is crashing.
[spoiler]
[io.netty.channel.DefaultChannelPipeline]: An exception was thrown by a user handler’s exceptionCaught() method while handling the following exception:
java.io.IOException: Error while writev(…): Connection reset by peer
at io.netty.channel.epoll.Native.writevAddresses(Native Method) ~[Native.class:?]
at io.netty.channel.epoll.EpollSocketChannel.writeBytesMultiple(EpollSocketChannel.java:184) ~[EpollSocketChannel.class:?]
at io.netty.channel.epoll.EpollSocketChannel.doWriteMultiple(EpollSocketChannel.java:364) ~[EpollSocketChannel.class:?]
at io.netty.channel.epoll.EpollSocketChannel.doWrite(EpollSocketChannel.java:317) ~[EpollSocketChannel.class:?]
at io.netty.channel.AbstractChannel$AbstractUnsafe.flush0(AbstractChannel.java:707) [AbstractChannel$AbstractUnsafe.class:?]
at io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.epollOutReady(AbstractEpollChannel.java:248) [AbstractEpollChannel$AbstractEpollUnsafe.class:?]
at io.netty.channel.epoll.EpollSocketChannel$EpollSocketUnsafe.epollOutReady(EpollSocketChannel.java:623) [EpollSocketChannel$EpollSocketUnsafe.class:?]
at io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:322) [EpollEventLoop.class:?]
at io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:264) [EpollEventLoop.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) [SingleThreadEventExecutor$2.class:?]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131]
[22:29:23] [Netty Epoll Server IO #0/ERROR] [Sponge]: The following exception was thrown from a netty handler’s exceptionCaught() method:
io.netty.util.concurrent.BlockingOperationException: DefaultChannelPromise@582801a1(uncancellable)
at io.netty.util.concurrent.DefaultPromise.checkDeadLock(DefaultPromise.java:390) ~[DefaultPromise.class:?]
at io.netty.channel.DefaultChannelPromise.checkDeadLock(DefaultChannelPromise.java:157) ~[DefaultChannelPromise.class:?]
at io.netty.util.concurrent.DefaultPromise.awaitUninterruptibly(DefaultPromise.java:283) ~[DefaultPromise.class:?]
at io.netty.channel.DefaultChannelPromise.awaitUninterruptibly(DefaultChannelPromise.java:135) ~[DefaultChannelPromise.class:?]
at io.netty.channel.DefaultChannelPromise.awaitUninterruptibly(DefaultChannelPromise.java:28) ~[DefaultChannelPromise.class:?]
at net.minecraft.network.NetworkManager.func_150718_a(NetworkManager.java:302) ~[eo.class:?]
at net.minecraft.network.NetworkManager.exceptionCaught(NetworkManager.java:140) ~[eo.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:271) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:249) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelInboundHandlerAdapter.exceptionCaught(ChannelInboundHandlerAdapter.java:131) [ChannelInboundHandlerAdapter.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.exceptionCaught(NetworkDispatcher.java:595) [NetworkDispatcher.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:271) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:249) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelHandlerAdapter.exceptionCaught(ChannelHandlerAdapter.java:79) [ChannelHandlerAdapter.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeExceptionCaught(AbstractChannelHandlerContext.java:271) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.fireExceptionCaught(AbstractChannelHandlerContext.java:249) [AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelHandlerAdapter.exceptionCaugh
[/spoiler]
it doesn’t crash each times but sometimes 
Can you help me.