17:06:17 [SEVERE] [/78.82.153.62:51117] <-> InitialHandler - encountered exception
io.netty.handler.codec.DecoderException: net.md_5.bungee.protocol.BadPacketException: Unknown packet id 21
    at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:417)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:131)
    at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337)
    at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323)
    at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149)
    at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337)
    at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:100)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:478)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
    at java.lang.Thread.run(Thread.java:722)
Caused by: net.md_5.bungee.protocol.BadPacketException: Unknown packet id 21
    at net.md_5.bungee.protocol.Vanilla.read(Vanilla.java:81)
    at net.md_5.bungee.netty.PacketDecoder.decode(PacketDecoder.java:39)
    at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:362)
    ... 13 more
17:07:07 [WARNING] [/174.29.170.208:52716] <-> InitialHandler - IOException: Connection reset by peer
17:07:09 [SEVERE] [/24.0.201.81:51159] <-> InitialHandler - encountered exception
io.netty.handler.codec.DecoderException: net.md_5.bungee.protocol.BadPacketException: Unknown packet id 97
    at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:417)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:131)
    at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337)
    at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323)
    at io.netty.handler.timeout.ReadTimeoutHandler.channelRead(ReadTimeoutHandler.java:149)
    at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:337)
    at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:323)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:100)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:478)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:447)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:341)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
    at java.lang.Thread.run(Thread.java:722)
Caused by: net.md_5.bungee.protocol.BadPacketException: Unknown packet id 97
    at net.md_5.bungee.protocol.Vanilla.read(Vanilla.java:81)
    at net.md_5.bungee.netty.PacketDecoder.decode(PacketDecoder.java:39)
    at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:362)
    ... 13 more