What is this crash report saying? Ticking Entity?

I had my server running all night and this came up.
Everybody is pissed so I need an explanation for them.
Thank you!


9:48:29 PM [SEVERE] net.minecraft.server.v1_4_6.ReportedException: Ticking entity
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:584)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.DedicatedServer.r(DedicatedServer.java:224)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.MinecraftServer.q(MinecraftServer.java:494)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:427)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)
9:48:29 PM [SEVERE] Caused by: java.lang.NullPointerException
9:48:29 PM [SEVERE] at java.util.LinkedList$ListItr.next(Unknown Source)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.EntityPlayer.j_(EntityPlayer.java:148)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.World.entityJoinedWorld(World.java:1334)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.WorldServer.entityJoinedWorld(WorldServer.java:548)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.World.playerJoinedWorld(World.java:1315)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.World.tickEntities(World.java:1193)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.WorldServer.tickEntities(WorldServer.java:445)
9:48:29 PM [SEVERE] at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:580)
9:48:29 PM [SEVERE] ... 4 more
9:48:29 PM [SEVERE] Encountered an unexpected exception ReportedException
net.minecraft.server.v1_4_6.ReportedException: Ticking entity
at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:584)
at net.minecraft.server.v1_4_6.DedicatedServer.r(DedicatedServer.java:224)
at net.minecraft.server.v1_4_6.MinecraftServer.q(MinecraftServer.java:494)
at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NullPointerException
at java.util.LinkedList$ListItr.next(Unknown Source)
at net.minecraft.server.v1_4_6.EntityPlayer.j_(EntityPlayer.java:148)
at net.minecraft.server.v1_4_6.World.entityJoinedWorld(World.java:1334)
at net.minecraft.server.v1_4_6.WorldServer.entityJoinedWorld(WorldServer.java:548)
at net.minecraft.server.v1_4_6.World.playerJoinedWorld(World.java:1315)
at net.minecraft.server.v1_4_6.World.tickEntities(World.java:1193)
at net.minecraft.server.v1_4_6.WorldServer.tickEntities(WorldServer.java:445)
at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:580)
... 4 more
9:48:29 PM [SEVERE] This crash report has been saved to: C:\Users\Leslie\Documents\Minecraft Server\.\crash-reports\crash-2013-01-07_21.48.29-server.txt

 

Are you hosting the server from your pc? or from a company? if so, what company?

 

rektok
PC

Any help would be very much appreciated from y'all. At the moment my phone is blowing up cause I have 9,200 users that cant access my server because of this error.

I still can't figure this out

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

i'm geting it to

 

The first thing to do is try updating plugins and using a different version of CraftBukkit and seeing if the problem persists.
Note: you may need dev builds for some plugins to work on 1.4.6/1.4.7

 

This is caused by a plugin using tasks in another thread. Please list your plugins, or remove any that you know use async tasks.