---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 5/16/18 4:48 PM
Description: Unexpected error

java.lang.NullPointerException: The validated object is null
at org.apache.commons.lang3.Validate.notNull(Validate.java:225)
at org.apache.commons.lang3.Validate.notNull(Validate.java:206)
at stellarium.render.stellars.layer.StellarLayerModel.onStellarTick(StellarLayerModel.java:78)
at stellarium.render.stellars.phased.StellarRenderModel.onTick(StellarRenderModel.java:64)
at stellarium.render.stellars.StellarModel.onTick(StellarModel.java:41)
at stellarium.render.sky.SkyModel.onTick(SkyModel.java:64)
at stellarium.ClientProxy.updateTick(ClientProxy.java:179)
at stellarium.StellarTickHandler.tickStart(StellarTickHandler.java:41)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_50_StellarTickHandler_tickStart_ClientTickEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:343)
at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1706)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1096)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:397)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- Head --
Thread: Client thread
Stacktrace:
at org.apache.commons.lang3.Validate.notNull(Validate.java:225)
at org.apache.commons.lang3.Validate.notNull(Validate.java:206)
at stellarium.render.stellars.layer.StellarLayerModel.onStellarTick(StellarLayerModel.java:78)
at stellarium.render.stellars.phased.StellarRenderModel.onTick(StellarRenderModel.java:64)
at stellarium.render.stellars.StellarModel.onTick(StellarModel.java:41)
at stellarium.render.sky.SkyModel.onTick(SkyModel.java:64)
at stellarium.ClientProxy.updateTick(ClientProxy.java:179)
at stellarium.StellarTickHandler.tickStart(StellarTickHandler.java:41)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_50_StellarTickHandler_tickStart_ClientTickEvent.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.fml.common.FMLCommonHandler.onPreClientTick(FMLCommonHandler.java:343)

[16:47:48] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: HacklesCackles joined the game
[16:48:13] [Server thread/INFO] [gravestone-extended]: Structure generation command received
[16:48:13] [Server thread/INFO] [gravestone-extended]: Generate catacombs at -2x206
[16:48:13] [Server thread/INFO] [FML]: Loading dimension -8 (TestMaps) (net.minecraft.server.dedicated.DedicatedServer@6ca46111)
[16:48:14] [Server thread/INFO] [gravestone-extended]: Catacombs generation - start generation of 1 level
[16:48:14] [Server thread/INFO] [gravestone-extended]: Catacombs generation - 1 level was successfully generated
[16:48:14] [Server thread/INFO] [gravestone-extended]: Catacombs generation - start generation of 2 level
[16:48:15] [Server thread/INFO] [gravestone-extended]: Catacombs generation - 2 level was successfully generated
[16:48:15] [Server thread/INFO] [gravestone-extended]: Catacombs generation - start generation of 3 level
[16:48:15] [Server thread/INFO] [gravestone-extended]: Catacombs generation - 3 level was successfully generated
[16:48:15] [Server thread/INFO] [gravestone-extended]: Catacombs generation - start generation of 4 level
[16:48:16] [Server thread/INFO] [gravestone-extended]: Generate Wither hall at 23x10x24
[16:48:16] [Server thread/INFO] [gravestone-extended]: Generate Wither hall at 23x10x24
[16:48:16] [Server thread/INFO] [gravestone-extended]: Catacombs generation - 4 level was successfully generated
[16:48:16] [Server thread/INFO] [gravestone-extended]: Catacombs was successfully generated!
[16:48:16] [Server thread/WARN] [net.minecraft.server.MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 3601ms behind, skipping 72 tick(s)
[16:48:17] [Server thread/INFO] [FML]: Unloading dimension -8
[16:48:37] [Server thread/INFO] [gravestone-extended]: Generate grave at -185x-9
[16:48:40] [Server thread/INFO] [FML]: Loading dimension -8 (TestMaps) (net.minecraft.server.dedicated.DedicatedServer@6ca46111)
[16:48:41] [Netty Server IO #1/ERROR] [FML]: NetworkDispatcher exception
java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch.SocketDispatcher.write0(Native Method) ~[?:1.8.0_161]
at sun.nio.ch.SocketDispatcher.write(Unknown Source) ~[?:1.8.0_161]
at sun.nio.ch.IOUtil.writeFromNativeBuffer(Unknown Source) ~[?:1.8.0_161]
at sun.nio.ch.IOUtil.write(Unknown Source) ~[?:1.8.0_161]
at sun.nio.ch.SocketChannelImpl.write(Unknown Source) ~[?:1.8.0_161]
at io.netty.channel.socket.nio.NioSocketChannel.doWrite(NioSocketChannel.java:417) ~[NioSocketChannel.class:?]
at io.netty.channel.AbstractChannel$AbstractUnsafe.flush0(AbstractChannel.java:856) ~[AbstractChannel$AbstractUnsafe.class:?]
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.flush0(AbstractNioChannel.java:362) ~[AbstractNioChannel$AbstractNioUnsafe.class:?]
at io.netty.channel.AbstractChannel$AbstractUnsafe.flush(AbstractChannel.java:823) ~[AbstractChannel$AbstractUnsafe.class:?]
at io.netty.channel.DefaultChannelPipeline$HeadContext.flush(DefaultChannelPipeline.java:1296) ~[DefaultChannelPipeline$HeadContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelDuplexHandler.flush(ChannelDuplexHandler.java:117) ~[ChannelDuplexHandler.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelOutboundHandlerAdapter.flush(ChannelOutboundHandlerAdapter.java:115) ~[ChannelOutboundHandlerAdapter.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelOutboundHandlerAdapter.flush(ChannelOutboundHandlerAdapter.java:115) ~[ChannelOutboundHandlerAdapter.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelOutboundHandlerAdapter.flush(ChannelOutboundHandlerAdapter.java:115) ~[ChannelOutboundHandlerAdapter.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.ChannelOutboundHandlerAdapter.flush(ChannelOutboundHandlerAdapter.java:115) ~[ChannelOutboundHandlerAdapter.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush(AbstractChannelHandlerContext.java:768) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.flush(AbstractChannelHandlerContext.java:749) ~[AbstractChannelHandlerContext.class:?]
at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher.flush(NetworkDispatcher.java:556) ~[NetworkDispatcher.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeFlush0(AbstractChannelHandlerContext.java:776) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.invokeWriteAndFlush(AbstractChannelHandlerContext.java:802) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:814) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:794) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:831) ~[AbstractChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:1032) ~[DefaultChannelPipeline.class:?]
at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:296) ~[AbstractChannel.class:?]
at net.minecraft.network.NetworkManager$4.run(NetworkManager.java:245) [gw$4.class:?]
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:163) [AbstractEventExecutor.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:403) [SingleThreadEventExecutor.class:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:442) [NioEventLoop.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:858) [SingleThreadEventExecutor$5.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_161]
[16:48:41] [Server thread/INFO] [net.minecraft.network.NetHandlerPlayServer]: HacklesCackles lost connection: Disconnected
[16:48:41] [Server thread/INFO] [net.minecraft.server.dedicated.DedicatedServer]: HacklesCackles left the game
[16:48:43] [Server thread/INFO] [FML]: Unloading dimension -8
[16:48:43] [Server thread/WARN] [net.minecraft.server.MinecraftServer]: Can't keep up! Did the system time change, or is the server overloaded? Running 2281ms behind, skipping 45 tick(s)