Bukkit

What steps will reproduce the problem?
1.i go through the portals
2.i go through the portals
3.same as above

What is the expected output? What do you see instead?
no error

What version of the product are you using?
1.2.6

Do you have an error log of what happened?
yes

Please provide any additional information below.

org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:330) ~[JavaPluginLoader$1.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.57]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[RegisteredListener.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.57]
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:30) ~[TimedRegisteredListener.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.57]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:487) [SimplePluginManager.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.57]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:472) [SimplePluginManager.class:git-Cauldron-MCPC-Plus-1.7.2-1.1126.04.57]
    at net.minecraft.network.NetHandlerPlayServer.func_147347_a(NetHandlerPlayServer.java:359) [mx.class:?]
    at net.minecraft.network.play.client.C03PacketPlayer.func_148833_a(C03PacketPlayer.java:36) [ir.class:?]
    at net.minecraft.network.play.client.C03PacketPlayer$C04PacketPlayerPosition.func_148833_a(C03PacketPlayer.java:144) [is.class:?]
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:206) [ef.class:?]
    at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:173) [ms.class:?]
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:947) [MinecraftServer.class:?]
    at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:429) [lj.class:?]
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:777) [MinecraftServer.class:?]
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:640) [MinecraftServer.class:?]
    at java.lang.Thread.run(Unknown Source) [?:1.7.0_55]
Caused by: java.lang.NullPointerException

Thank you for the report

Could I have a list of the other plugins you have running on the server please?