Error

22:43:37 [SEVERE] Could not pass event PlayerAnimationEvent to Bending v1.1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:341)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.jav
a:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.j
ava:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.j
ava:462)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:1029)
        at net.minecraft.server.Packet18ArmAnimation.handle(SourceFile:41)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:290)
        at net.minecraft.server.NetServerHandler.d(NetServerHandler.java:113)
        at net.minecraft.server.ServerConnection.b(SourceFile:39)
        at net.minecraft.server.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:595)
        at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
Caused by: java.lang.NullPointerException
        at com.massivecraft.factions.listeners.FactionsBlockListener.playerCanBu
ildDestroyBlock(FactionsBlockListener.java:173)
        at tools.Tools.isRegionProtectedFromBuild(Tools.java:987)
        at waterbending.FreezeMelt.isFreezable(FreezeMelt.java:40)
        at waterbending.FreezeMelt.<init>(FreezeMelt.java:34)
        at main.BendingListener.onPlayerSwing(BendingListener.java:408)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.ja
va:339)
        ... 14 more
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