WS Rewrite latest, Error unknow cause

12:02:33.342 [HttpClient@25538211-21] ERROR sx.blah.discord.Discord4J - Encountered websocket error:
org.eclipse.jetty.io.EofException: null
    at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:292)
    at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.flush(SslConnection.java:888)
    at org.eclipse.jetty.io.WriteFlusher.flush(WriteFlusher.java:429)
    at org.eclipse.jetty.io.WriteFlusher.write(WriteFlusher.java:322)
    at org.eclipse.jetty.io.AbstractEndPoint.write(AbstractEndPoint.java:372)
    at org.eclipse.jetty.websocket.common.io.FrameFlusher$Flusher.flush(FrameFlusher.java:153)
    at org.eclipse.jetty.websocket.common.io.FrameFlusher$Flusher.process(FrameFlusher.java:217)
    at org.eclipse.jetty.util.IteratingCallback.processing(IteratingCallback.java:241)
    at org.eclipse.jetty.util.IteratingCallback.iterate(IteratingCallback.java:224)
    at org.eclipse.jetty.websocket.common.io.FrameFlusher.enqueue(FrameFlusher.java:382)
    at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.outgoingFrame(AbstractWebSocketConnection.java:614)
    at org.eclipse.jetty.websocket.client.io.WebSocketClientConnection.outgoingFrame(WebSocketClientConnection.java:72)
    at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onConnectionStateChange(AbstractWebSocketConnection.java:473)
    at org.eclipse.jetty.websocket.common.io.IOState.notifyStateListeners(IOState.java:184)
    at org.eclipse.jetty.websocket.common.io.IOState.onReadFailure(IOState.java:498)
    at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:666)
    at org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:511)
    at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:112)
    at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:261)
    at org.eclipse.jetty.io.ssl.SslConnection$3.succeeded(SslConnection.java:150)
    at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:112)
    at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
    at org.eclipse.jetty.util.thread.Invocable.invokePreferred(Invocable.java:122)
    at org.eclipse.jetty.util.thread.strategy.ExecutingExecutionStrategy.invoke(ExecutingExecutionStrategy.java:58)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:201)
    at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:133)
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:672)
    at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:590)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host
    at sun.nio.ch.SocketDispatcher.write0(Native Method)
    at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51)
    at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93)
    at sun.nio.ch.IOUtil.write(IOUtil.java:51)
    at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471)
    at org.eclipse.jetty.io.ChannelEndPoint.flush(ChannelEndPoint.java:270)
    ... 29 common frames omitted