Problem with Server

Good Evening.
On Starting the Server i get theese Errors:

HTML:

 213    2011-12-29 21:26:33 [SEVERE] java.util.ConcurrentModificationException
   214    2011-12-29 21:26:33 [SEVERE]     at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
   215    2011-12-29 21:26:33 [SEVERE]     at java.util.AbstractList$Itr.next(AbstractList.java:343)
   216    2011-12-29 21:26:33 [SEVERE]     at java.util.AbstractCollection.removeAll(AbstractCollection.java:336)
   217    2011-12-29 21:26:33 [SEVERE]     at net.minecraft.server.World.tickEntities(World.java:1185)
   218    2011-12-29 21:26:33 [SEVERE]     at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:518)
   219    2011-12-29 21:26:33 [SEVERE]     at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425)
   220    2011-12-29 21:26:33 [SEVERE]     at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)
   221    2011-12-29 21:26:33 [SEVERE] Unexpected exception
   222    java.util.ConcurrentModificationException
   223        at java.util.AbstractList$Itr.checkForComodification(AbstractList.java:372)
   224        at java.util.AbstractList$Itr.next(AbstractList.java:343)
   225        at java.util.AbstractCollection.removeAll(AbstractCollection.java:336)
   226        at net.minecraft.server.World.tickEntities(World.java:1185)
   227        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:518)
   228        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425)
   229        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)

There is NO Chunk error or somethin else...pls help me

 

Check the sticky thread, "Troubleshooting: Common Problems with Solution." It will be the latest post, this is a common exception.

 

Ouh....well, here is a list of my plugins.
You may look, whether you know which plugin it could be? Because i don't know....

 

I haven't heard of some of those plugins, you'd know what they do more than I would. If it happens every time you start the server, think of a plugin that begins a repeating, delayed process (like dynmap, except I'm sure dynmap is safe) as soon as the server starts.

 

It can't be dynmap because this plugin is new on my server
Maybe you can say me some names of the plugin your thinking of, so theese where you don't know what to do