[14:26:16] [Netty Server IO #2/WARN]: [ViaVersion] This is most likely down to one of your plugins sending bad datawatchers. Please test if this occurs without any plugins except ViaVersion before reporting it on GitHub [14:26:16] [Netty Server IO #2/WARN]: [ViaVersion] Also make sure that all your plugins are compatible with your server version. [14:26:16] [Netty Server IO #2/ERROR]: [ViaVersion] An error occurred with entity meta data for ZOMBIE OldID: 18 [14:26:16] [Netty Server IO #2/WARN]: java.lang.Exception: Could not find valid metadata [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.MetadataRewriter.transform(MetadataRewriter.java:132) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.protocols.protocol1_9to1_8.packets.SpawnPackets$5$3.handle(SpawnPackets.java:218) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.api.remapper.PacketHandler.write(PacketHandler.java:18) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.api.remapper.PacketRemapper.remap(PacketRemapper.java:96) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.api.protocol.Protocol.transform(Protocol.java:150) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.api.PacketWrapper.apply(PacketWrapper.java:423) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.api.protocol.ProtocolPipeline.transform(ProtocolPipeline.java:73) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.bukkit.handlers.BukkitEncodeHandler.transform(BukkitEncodeHandler.java:77) [14:26:16] [Netty Server IO #2/WARN]: at us.myles.ViaVersion.bukkit.handlers.BukkitEncodeHandler.encode(BukkitEncodeHandler.java:58) [14:26:16] [Netty Server IO #2/WARN]: at sun.reflect.GeneratedMethodAccessor135.invoke(Unknown Source) [14:26:16] [Netty Server IO #2/WARN]: at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) [14:26:16] [Netty Server IO #2/WARN]: at java.lang.reflect.Method.invoke(Unknown Source) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.reflect.accessors.DefaultMethodAccessor.invoke(DefaultMethodAccessor.java:16) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector.encode(ChannelInjector.java:487) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$3.encode(ChannelInjector.java:259) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$3.write(ChannelInjector.java:265) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:651) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.handler.codec.MessageToMessageEncoder.write(MessageToMessageEncoder.java:112) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:658) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:716) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:706) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:741) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:895) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:240) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.injector.netty.ChannelProxy.writeAndFlush(ChannelProxy.java:327) [14:26:16] [Netty Server IO #2/WARN]: at net.minecraft.server.v1_8_R3.NetworkManager$4.run(NetworkManager.java:198) [14:26:16] [Netty Server IO #2/WARN]: at com.comphenix.protocol.injector.netty.ChannelInjector$5$3.run(ChannelInjector.java:342) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:380) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:357) [14:26:16] [Netty Server IO #2/WARN]: at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) [14:26:16] [Netty Server IO #2/WARN]: at java.lang.Thread.run(Unknown Source)
Remove each plugin one by one until it stops showing that error then put all plugins back apart from the one making the error!
Yes i did, it literally says what i said to do. Remove ViaVersion and if the issue doesn't happen report it on GitHub and if it still happens remove each plugin one by one to see which one is causing the issue!