my personal server crashes 2-5 minutes after opening

since this carries private information I've been told, I made this a private thread. but maybe you all can tell me what the problem is.

Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 9/28/14 6:27 AM
Description: Watching Server

java.lang.Error
at com.google.common.collect.AbstractIndexedListIterator.next(AbstractIndexedListIterator.java:84)
at bfh.h(SourceFile:239)
at bfh.y(SourceFile:1112)
at bfh.n(SourceFile:1100)
at qs.a(SourceFile:172)
at bfh.a(SourceFile:870)
at qs.c(SourceFile:104)
at qr.<init>(SourceFile:39)
at qq.a(SourceFile:231)
at qq.d(SourceFile:370)
at sn.d(SourceFile:286)
at rj.a(SourceFile:329)
at mg.a(SourceFile:126)
at mh.a(SourceFile:57)
at ih.run(SourceFile:13)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at net.minecraft.server.MinecraftServer.z(SourceFile:576)
at po.z(SourceFile:305)
at net.minecraft.server.MinecraftServer.y(SourceFile:531)
at net.minecraft.server.MinecraftServer.run(SourceFile:447)
at java.lang.Thread.run(Unknown Source)

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

– Head –
Stacktrace:
at com.google.common.collect.AbstractIndexedListIterator.next(AbstractIndexedListIterator.java:84)
at bfh.h(SourceFile:239)
at bfh.y(SourceFile:1112)
at bfh.n(SourceFile:1100)
at qs.a(SourceFile:172)
at bfh.a(SourceFile:870)
at qs.c(SourceFile:104)
at qr.<init>(SourceFile:39)
at qq.a(SourceFile:231)
at qq.d(SourceFile:370)
at sn.d(SourceFile:286)
at rj.a(SourceFile:329)
at mg.a(SourceFile:126)
at mh.a(SourceFile:57)
at ih.run(SourceFile:13)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at net.minecraft.server.MinecraftServer.z(SourceFile:576)
at po.z(SourceFile:305)
at net.minecraft.server.MinecraftServer.y(SourceFile:531)

– Thread Dump –
Details:
Threads: "File IO Thread" Id=40 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at brp.c(SourceFile:51)
at brp.run(SourceFile:30)
at java.lang.Thread.run(Unknown Source)

"Netty Server IO #1" Id=27 BLOCKED on java.util.ArrayDeque@1feb5a0 owned by "Server thread" Id=20
at net.minecraft.server.MinecraftServer.a(SourceFile:1282)

• blocked on java.util.ArrayDeque@1feb5a0
  at net.minecraft.server.MinecraftServer.a(SourceFile:1299)
  at qt.a(SourceFile:976)
  at ig.a(SourceFile:10)
  at rj.a(SourceFile:148)
  at mg.a(SourceFile:126)
  at mh.a(SourceFile:57)
  at gr.a(SourceFile:106)
  ...

"Server Watchdog" Id=36 RUNNABLE
at sun.management.ThreadImpl.dumpThreads0(Native Method)
at sun.management.ThreadImpl.dumpAllThreads(Unknown Source)
at pt.run(SourceFile:43)
at java.lang.Thread.run(Unknown Source)

"Netty Server IO #0" Id=26 RUNNABLE (in native)
at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)

• locked io.netty.channel.nio.SelectedSelectionKeySet@f13595
  - locked java.util.Collections$UnmodifiableSet@1a0c7bf
  - locked sun.nio.ch.WindowsSelectorImpl@ce12ee
  at sun.nio.ch.SelectorImpl.select(Unknown Source)
  at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:618)
  at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:306)
  ...

"D3D Screen Updater" Id=24 TIMED_WAITING on java.lang.Object@13cf8e8
at java.lang.Object.wait(Native Method)

• waiting on java.lang.Object@13cf8e8
  at sun.java2d.d3d.D3DScreenUpdateManager.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)

"DestroyJavaVM" Id=22 RUNNABLE

"Server thread" Id=20 RUNNABLE
at com.google.common.collect.AbstractIndexedListIterator.next(AbstractIndexedListIterator.java:84)
at bfh.h(SourceFile:239)
at bfh.y(SourceFile:1112)
at bfh.n(SourceFile:1100)
at qs.a(SourceFile:172)
at bfh.a(SourceFile:870)
at qs.c(SourceFile:104)
at qr.<init>(SourceFile:39)
...

"TimerQueue" Id=18 RUNNABLE
at sun.misc.Unsafe.unpark(Native Method)
at java.util.concurrent.locks.LockSupport.unpark(Unknown Source)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.unparkSuccessor(Unknown Source)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.release(Unknown Source)
at java.util.concurrent.locks.ReentrantLock.unlock(Unknown Source)
at java.awt.EventQueue.postEventPrivate(Unknown Source)
at java.awt.EventQueue.postEvent(Unknown Source)
at java.awt.EventQueue.invokeLater(Unknown Source)
...

Number of locked synchronizers = 2

• java.util.concurrent.locks.ReentrantLock$NonfairSync@1f98587
  - java.util.concurrent.locks.ReentrantLock$NonfairSync@ad6b49

"AWT-EventQueue-0" Id=16 RUNNABLE
at sun.font.GlyphList.getInstance(Unknown Source)
at sun.java2d.pipe.GlyphListPipe.drawString(Unknown Source)
at sun.java2d.SunGraphics2D.drawString(Unknown Source)
at qd.paint(SourceFile:64)
at javax.swing.JComponent.paintChildren(Unknown Source)

• locked java.awt.Component$AWTTreeLock@15e903a
  at javax.swing.JComponent.paint(Unknown Source)
  at javax.swing.JComponent.paintToOffscreen(Unknown Source)
  at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)
  ...

"AWT-Windows" Id=14 RUNNABLE (in native)
at sun.awt.windows.WToolkit.eventLoop(Native Method)
at sun.awt.windows.WToolkit.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

"AWT-Shutdown" Id=13 WAITING on java.lang.Object@14ed297
at java.lang.Object.wait(Native Method)

• waiting on java.lang.Object@14ed297
  at java.lang.Object.wait(Object.java:503)
  at sun.awt.AWTAutoShutdown.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)

"Java2D Disposer" Id=12 WAITING on java.lang.ref.ReferenceQueue$Lock@1e3b933
at java.lang.Object.wait(Native Method)

• waiting on java.lang.ref.ReferenceQueue$Lock@1e3b933
  at java.lang.ref.ReferenceQueue.remove(Unknown Source)
  at java.lang.ref.ReferenceQueue.remove(Unknown Source)
  at sun.java2d.Disposer.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)

"Server Infinisleeper" Id=11 TIMED_WAITING
at java.lang.Thread.sleep(Native Method)
at pp.run(SourceFile:64)

"Snooper Timer" Id=10 TIMED_WAITING on java.util.TaskQueue@193d9c7
at java.lang.Object.wait(Native Method)

• waiting on java.util.TaskQueue@193d9c7
  at java.util.TimerThread.mainLoop(Unknown Source)
  at java.util.TimerThread.run(Unknown Source)

"Attach Listener" Id=5 RUNNABLE

"Signal Dispatcher" Id=4 RUNNABLE

"Finalizer" Id=3 WAITING on java.lang.ref.ReferenceQueue$Lock@1bed318
at java.lang.Object.wait(Native Method)

• waiting on java.lang.ref.ReferenceQueue$Lock@1bed318
  at java.lang.ref.ReferenceQueue.remove(Unknown Source)
  at java.lang.ref.ReferenceQueue.remove(Unknown Source)
  at java.lang.ref.Finalizer$FinalizerThread.run(Unknown Source)

"Reference Handler" Id=2 WAITING on java.lang.ref.Reference$Lock@11505f8
at java.lang.Object.wait(Native Method)

• waiting on java.lang.ref.Reference$Lock@11505f8
  at java.lang.Object.wait(Object.java:503)
  at java.lang.ref.Reference$ReferenceHandler.run(Unknown Source)

Stacktrace:
at pt.run(SourceFile:59)
at java.lang.Thread.run(Unknown Source)

– System Details –
Details:
Minecraft Version: 1.8
Operating System: Windows 8.1 (x86) version 6.3
Java Version: 1.7.0_67, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 927364040 bytes (884 MB) / 1037959168 bytes (989 MB) up to 1037959168 bytes (989 MB)
JVM Flags: 2 total; -Xms1024m -Xmx1024m
IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
Profiler Position: N/A (disabled)
Player Count: 1 / 20; [qw['Raezyer'/2089, l='My World', x=63.04, y=62.26, z=672.01]]
Is Modded: Unknown (can't tell)
Type: Dedicated Server (map_server.txt)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I have like 20 of these for two different servers. I don't use hacks, mods, bukkits, nothing I don't like changing or modding games because I just feel like it's cheating, it's a cheap shot, it's not fair for other players. so this is exactly how I purchased it from you all and I would like to be able to use it again soon, it was fine up until update 1.8 didn't have any problems with 1.7.10 or earlier... just 1.8 please help.