Invalid Errors on players exit

1. Code (text):

   [LilyPad] build 37 of AllInOne
   java.io.IOException: ╧ЁюуЁрььр эр тр°хь їюёЄ-ъюья№■ЄхЁх ЁрчюЁтрыр єёЄрэютыхээюх
   яюфъы■ўхэшх
           at sun.nio.ch.SocketDispatcher.read0(Native Method)
           at sun.nio.ch.SocketDispatcher.read(Unknown Source)
           at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
           at sun.nio.ch.IOUtil.read(Unknown Source)
           at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
           at io.netty.buffer.PooledUnsafeDirectByteBuf.setBytes(PooledUnsafeDirect
   ByteBuf.java:274)
           at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:885)
           at io.netty.channel.socket.nio.NioSocketChannel.doReadBytes(NioSocketCha
   nnel.java:247)
           at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(Abstra
   ctNioByteChannel.java:82)
           at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.jav
   a:489)
           at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEve
   ntLoop.java:464)
           at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:358)
           at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThread
   EventExecutor.java:101)
           at java.lang.Thread.run(Unknown Source)

When players exit display this error. Windows Server.
the second line Russian characters I do not know where they're