[SEVERE] Could not pass event StructureGrowEvent to Prism v2.0Beta6-MCPC-MC1.6-20-g300224e-SNAPSHOT
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:437)
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
	at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:31)
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
	at net.minecraft.block.BlockSapling.growTree_CB(BlockSapling.java:284)
	at net.minecraft.block.BlockSapling.growTree(BlockSapling.java:194)
	at net.minecraft.block.BlockSapling.func_71847_b(BlockSapling.java:54)
	at net.minecraft.world.WorldServer.func_72893_g(WorldServer.java:750)
	at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:440)
	at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:876)
	at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:330)
	at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:781)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:663)
	at net.minecraft.server.ThreadMinecraftServer.run(ThreadMinecraftServer.java:16)
Caused by: java.lang.NullPointerException
	at me.botsko.prism.listeners.PrismWorldEvents.onStructureGrow(PrismWorldEvents.java:25)
	at sun.reflect.GeneratedMethodAccessor227.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:435)
	... 14 more