---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 19. 5. 20 오전 3:40
Description: Exception in server tick loop

java.lang.NullPointerException: Exception in server tick loop
    at net.minecraft.server.v1_9_R1.NBTTagCompound.a(SourceFile:414)
    at net.minecraft.server.v1_9_R1.NBTTagCompound.load(SourceFile:71)
    at net.minecraft.server.v1_9_R1.NBTTagCompound.a(SourceFile:414)
    at net.minecraft.server.v1_9_R1.NBTTagCompound.load(SourceFile:71)
    at net.minecraft.server.v1_9_R1.NBTTagCompound.a(SourceFile:414)
    at net.minecraft.server.v1_9_R1.NBTTagCompound.load(SourceFile:71)
    at net.minecraft.server.v1_9_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:84)
    at net.minecraft.server.v1_9_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:53)
    at net.minecraft.server.v1_9_R1.NBTCompressedStreamTools.a(NBTCompressedStreamTools.java:43)
    at net.minecraft.server.v1_9_R1.ChunkRegionLoader.loadChunk(ChunkRegionLoader.java:72)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:21)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOProvider.callStage1(ChunkIOProvider.java:1)
    at org.bukkit.craftbukkit.v1_9_R1.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:336)
    at org.bukkit.craftbukkit.v1_9_R1.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:295)
    at org.bukkit.craftbukkit.v1_9_R1.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:16)
    at net.minecraft.server.v1_9_R1.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:136)
    at net.minecraft.server.v1_9_R1.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:118)
    at net.minecraft.server.v1_9_R1.MinecraftServer.l(MinecraftServer.java:367)
    at net.minecraft.server.v1_9_R1.MinecraftServer.a(MinecraftServer.java:331)
    at net.minecraft.server.v1_9_R1.DedicatedServer.init(DedicatedServer.java:269)
    at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:527)
    at java.lang.Thread.run(Unknown Source)

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

-- System Details --
Details:
    Minecraft Version: 1.9
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_201, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 3960576512 bytes (3777 MB) / 4116185088 bytes (3925 MB) up to 4116185088 bytes (3925 MB)
    JVM Flags: 2 total; -Xms4G -Xmx4G
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    CraftBukkit Information: 
   Running: CraftBukkit version git-Spigot-d20369f-7fc5cd8 (MC: 1.9) (Implementing API version 1.9-R0.1-SNAPSHOT) true
   Plugins: {}
   Warnings: DEFAULT
   Reload Count: 0
   Threads: { WAITING NonBlockingInputStreamThread: [java.lang.Object.wait(Native Method), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.run(NonBlockingInputStream.java:278), java.lang.Thread.run(Unknown Source)], TIMED_WAITING Spigot Metrics Thread: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Unknown Source), java.util.TimerThread.run(Unknown Source)], TIMED_WAITING Spigot Watchdog Thread: [java.lang.Thread.sleep(Native Method), org.spigotmc.WatchdogThread.run(WatchdogThread.java:92)], WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Unknown Source), java.lang.ref.Reference.tryHandlePending(Unknown Source), java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)], WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Unknown Source), java.util.TimerThread.mainLoop(Unknown Source), java.util.TimerThread.run(Unknown Source)], RUNNABLE Attach Listener: [], RUNNABLE Netty Server IO #0: [sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method), sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source), sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source), sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source), sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source), sun.nio.ch.SelectorImpl.select(Unknown Source), io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:622), io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:310), io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116), java.lang.Thread.run(Unknown Source)], TIMED_WAITING Server Infinisleeper: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_9_R1.DedicatedServer$1.run(DedicatedServer.java:57)], RUNNABLE DestroyJavaVM: [], RUNNABLE Thread-5: [org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.print(ConsoleReader.java:3458), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.drawLine(ConsoleReader.java:602), org.bukkit.craftbukkit.v1_9_R1.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:38), java.lang.Thread.run(Unknown Source)], RUNNABLE Signal Dispatcher: [], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Unknown Source), org.bukkit.craftbukkit.v1_9_R1.CraftCrashReport.call(CraftCrashReport.java:29), net.minecraft.server.v1_9_R1.CrashReportSystemDetails.a(SourceFile:79), net.minecraft.server.v1_9_R1.CrashReport.h(CrashReport.java:127), net.minecraft.server.v1_9_R1.CrashReport.<init>(CrashReport.java:34), net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:579), java.lang.Thread.run(Unknown Source)], RUNNABLE Server console handler: [org.fusesource.jansi.internal.Kernel32.ReadConsoleInputW(Native Method), org.fusesource.jansi.internal.Kernel32.readConsoleInputHelper(Kernel32.java:761), org.fusesource.jansi.internal.Kernel32.readConsoleKeyInput(Kernel32.java:794), org.fusesource.jansi.internal.WindowsSupport.readConsoleInput(WindowsSupport.java:97), org.bukkit.craftbukkit.libs.jline.WindowsTerminal.readConsoleInput(WindowsTerminal.java:215), org.bukkit.craftbukkit.libs.jline.WindowsTerminal.access$000(WindowsTerminal.java:55), org.bukkit.craftbukkit.libs.jline.WindowsTerminal$1.read(WindowsTerminal.java:157), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:169), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:137), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:246), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:261), org.bukkit.craftbukkit.libs.jline.internal.InputStreamReader.read(InputStreamReader.java:198), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readCharacter(ConsoleReader.java:2145), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2349), net.minecraft.server.v1_9_R1.DedicatedServer$2.run(DedicatedServer.java:82)], WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(Unknown Source), java.lang.ref.ReferenceQueue.remove(Unknown Source), java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)],}
   Recent tasks from -31--1{}
    Profiler Position: N/A (disabled)
    Player Count: 0 / 20; []
    Is Modded: Definitely; Server brand changed to 'Spigot'
    Type: Dedicated Server (map_server.txt)

그냥 월드로할때는 서버구동이 가능한데 half heart race 라는 맵으로 바꿧을시에 구동이되지않습니다. 왜이런걸까요?