Minecraft Server Crashing Spigot 1.8

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

Time: 7/7/17 12:57 PM
Description: Exception ticking world

java.lang.NullPointerException: Exception ticking world
at net.minecraft.server.v1_8_R2.StructureGenerator.c(StructureGenerator.java:107)
at net.minecraft.server.v1_8_R2.WorldGenLargeFeature.a(WorldGenLargeFeature.java:89)
at net.minecraft.server.v1_8_R2.ChunkProviderGenerate.getMobsFor(SourceFile:537)
at org.bukkit.craftbukkit.v1_8_R2.generator.NormalChunkGenerator.getMobsFor(NormalChunkGenerator.java:76)
at net.minecraft.server.v1_8_R2.ChunkProviderServer.getMobsFor(ChunkProviderServer.java:400)
at net.minecraft.server.v1_8_R2.WorldServer.a(WorldServer.java:282)
at net.minecraft.server.v1_8_R2.SpawnerCreature.a(SpawnerCreature.java:167)
at net.minecraft.server.v1_8_R2.WorldServer.doTick(WorldServer.java:226)
at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:765)
at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368)
at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651)
at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554)
at java.lang.Thread.run(Thread.java:745)


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

-- Head --
Stacktrace:
at net.minecraft.server.v1_8_R2.StructureGenerator.c(StructureGenerator.java:107)
at net.minecraft.server.v1_8_R2.WorldGenLargeFeature.a(WorldGenLargeFeature.java:89)
at net.minecraft.server.v1_8_R2.ChunkProviderGenerate.getMobsFor(SourceFile:537)
at org.bukkit.craftbukkit.v1_8_R2.generator.NormalChunkGenerator.getMobsFor(NormalChunkGenerator.java:76)
at net.minecraft.server.v1_8_R2.ChunkProviderServer.getMobsFor(ChunkProviderServer.java:400)
at net.minecraft.server.v1_8_R2.WorldServer.a(WorldServer.java:282)
at net.minecraft.server.v1_8_R2.SpawnerCreature.a(SpawnerCreature.java:167)
at net.minecraft.server.v1_8_R2.WorldServer.doTick(WorldServer.java:226)

-- Affected level --
Details:
Level name: world
All players: 2 total; [EntityPlayer['cameron469'/190, l='world', x=260.67, y=40.00, z=169.99](cameron469 at 260.6654661030284,40.0,169.98913950675652), EntityPlayer['Jephi'/220, l='world', x=261.70, y=42.20, z=174.70](Jephi at 261.69999998807907,42.200000047683716,174.6958853960823)]
Chunk stats: ServerChunkCache: 590 Drop: 0
Level seed: 2162650816990608656
Level generator: ID 00 - default, ver 1. Features enabled: true
Level generator options:
Level spawn location: 87.00,49.00,156.00 - World: (87,49,156), Chunk: (at 7,3,12 in 5,9; contains blocks 80,0,144 to 95,255,159), Region: (0,0; contains chunks 0,0 to 31,31, blocks 0,0,0 to 511,255,511)
Level time: 1526316 game time, 7000 day time
Level dimension: 0
Level storage version: 0x04ABD - Anvil
Level weather: Rain time: 31443 (now: false), thunder time: 73867 (now: false)
Level game mode: Game mode: survival (ID 0). Hardcore: false. Cheats: false
Stacktrace:
at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:765)
at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368)
at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651)
at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554)
at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
Minecraft Version: 1.8.3
Operating System: Linux (amd64) version 4.4.0-75-generic
CPU: 24x Intel(R) Xeon(R) CPU X5680 @ 3.33GHz
Java Version: 1.8.0_111, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 5021961000 bytes (4789 MB) / 6174015488 bytes (5888 MB) up to 6174015488 bytes (5888 MB)
JVM Flags: 3 total; -Xmx6144M -Xms6144M -XX:MaxPermSize=128M
IntCache: cache: 0, tcache: 4, allocated: 17, tallocated: 89
CraftBukkit Information:
Running: CraftBukkit version git-Spigot-dbe012b-61ef214 (MC: 1.8.3) (Implementing API version 1.8.3-R0.1-SNAPSHOT) true
Plugins: { WorldEdit v6.1;no_git_id com.sk89q.worldedit.bukkit.WorldEditPlugin [], Multiverse-Core v2.5-b699 com.onarandombox.MultiverseCore.MultiverseCore [Rigby, fernferret, lithium3141, main--],}
Warnings: DEFAULT
Reload Count: 0
Threads: { WAITING Chunk I/O Executor Thread-1: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:175), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067), java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127), java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617), java.lang.Thread.run(Thread.java:745)], TIMED_WAITING Snooper Timer: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Timer.java:552), java.util.TimerThread.run(Timer.java:505)], TIMED_WAITING File IO Thread: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_8_R2.FileIOThread.c(SourceFile:51), net.minecraft.server.v1_8_R2.FileIOThread.run(SourceFile:30), java.lang.Thread.run(Thread.java:745)], WAITING Reference Handler: [java.lang.Object.wait(Native Method), java.lang.Object.wait(Object.java:502), java.lang.ref.Reference.tryHandlePending(Reference.java:191), java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)], RUNNABLE Server thread: [java.lang.Thread.dumpThreads(Native Method), java.lang.Thread.getAllStackTraces(Thread.java:1607), org.bukkit.craftbukkit.v1_8_R2.CraftCrashReport.call(CraftCrashReport.java:29), net.minecraft.server.v1_8_R2.CrashReportSystemDetails.a(SourceFile:78), net.minecraft.server.v1_8_R2.CrashReport.h(CrashReport.java:136), net.minecraft.server.v1_8_R2.CrashReport.<init>(CrashReport.java:34), net.minecraft.server.v1_8_R2.CrashReport.a(CrashReport.java:321), net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:770), net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368), net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651), net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554), java.lang.Thread.run(Thread.java:745)], RUNNABLE Netty Epoll Server IO #1: [io.netty.channel.epoll.Native.epollWait(Native Method), io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194), io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219), io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116), java.lang.Thread.run(Thread.java:745)], TIMED_WAITING Spigot Watchdog Thread: [java.lang.Thread.sleep(Native Method), org.spigotmc.WatchdogThread.run(WatchdogThread.java:92)], RUNNABLE Server console handler: [java.io.FileInputStream.readBytes(Native Method), java.io.FileInputStream.read(FileInputStream.java:255), java.io.BufferedInputStream.fill(BufferedInputStream.java:246), java.io.BufferedInputStream.read(BufferedInputStream.java:265), org.bukkit.craftbukkit.libs.jline.internal.NonBlockingInputStream.read(NonBlockingInputStream.java:248), 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.readLineSimple(ConsoleReader.java:3183), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2333), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2269), org.bukkit.craftbukkit.libs.jline.console.ConsoleReader.readLine(ConsoleReader.java:2257), net.minecraft.server.v1_8_R2.DedicatedServer$2.run(DedicatedServer.java:81)], RUNNABLE Signal Dispatcher: [], RUNNABLE Netty Epoll Server IO #0: [io.netty.channel.epoll.Native.epollWait(Native Method), io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194), io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219), io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116), java.lang.Thread.run(Thread.java:745)], RUNNABLE Netty Epoll Server IO #2: [io.netty.channel.epoll.Native.epollWait(Native Method), io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194), io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219), io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116), java.lang.Thread.run(Thread.java:745)], TIMED_WAITING Spigot Metrics Thread: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Timer.java:552), java.util.TimerThread.run(Timer.java:505)], TIMED_WAITING Timer-0: [java.lang.Object.wait(Native Method), java.util.TimerThread.mainLoop(Timer.java:552), java.util.TimerThread.run(Timer.java:505)], RUNNABLE Netty Epoll Server IO #3: [io.netty.channel.epoll.Native.epollWait(Native Method), io.netty.channel.epoll.EpollEventLoop.epollWait(EpollEventLoop.java:194), io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:219), io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116), java.lang.Thread.run(Thread.java:745)], WAITING Finalizer: [java.lang.Object.wait(Native Method), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143), java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164), java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)], TIMED_WAITING Server Infinisleeper: [java.lang.Thread.sleep(Native Method), net.minecraft.server.v1_8_R2.DedicatedServer$1.run(DedicatedServer.java:54)], RUNNABLE DestroyJavaVM: [], WAITING Thread-4: [sun.misc.Unsafe.park(Native Method), java.util.concurrent.locks.LockSupport.park(LockSupport.java:175), java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039), java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442), com.mojang.util.QueueLogAppender.getNextLogEvent(QueueLogAppender.java:77), org.bukkit.craftbukkit.v1_8_R2.util.TerminalConsoleWriterThread.run(TerminalConsoleWriterThread.java:25), java.lang.Thread.run(Thread.java:745)],}
Recent tasks from 2061-2091{Multiverse-Core:org.mcstats.multiverse.Metrics$1@31,}
Profiler Position: N/A (disabled)
Player Count: 2 / 50; [EntityPlayer['cameron469'/190, l='world', x=260.67, y=40.00, z=169.99](cameron469 at 260.6654661030284,40.0,169.98913950675652), EntityPlayer['Jephi'/220, l='world', x=261.70, y=42.20, z=174.70](Jephi at 261.69999998807907,42.200000047683716,174.6958853960823)]
Is Modded: Definitely; Server brand changed to 'Spigot'
Type: Dedicated Server (map_server.txt)