Worldedit brush

14:56:18 [SEVERE] Could not pass event PLAYER_INTERACT to WorldEdit
java.lang.NullPointerException
        at com.sk89q.worldedit.masks.CombinedMask.matches(CombinedMask.java:56)
        at com.sk89q.worldedit.EditSession.rawSetBlock(EditSession.java:183)
        at com.sk89q.worldedit.EditSession.smartSetBlock(EditSession.java:344)
        at com.sk89q.worldedit.EditSession.setBlock(EditSession.java:271)
        at com.sk89q.worldedit.EditSession.setBlock(EditSession.java:298)
        at com.sk89q.worldedit.EditSession.makeSphere(EditSession.java:2156)
        at com.sk89q.worldedit.tools.brushes.SphereBrush.build(SphereBrush.java:33)
        at com.sk89q.worldedit.tools.BrushTool.actPrimary(BrushTool.java:192)
        at com.sk89q.worldedit.WorldEdit.handleRightClick(WorldEdit.java:1102)
        at com.sk89q.worldedit.bukkit.WorldEditPlayerListener.onPlayerInteract(WorldEditPlayerListener.java:156)
        at org.bukkit.plugin.java.JavaPluginLoader$11.execute(JavaPluginLoader.java:335)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
        at org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:178)
        at net.minecraft.server.ItemInWorldManager.interact(ItemInWorldManager.java:266)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:593)
        at net.minecraft.server.Packet15Place.a(SourceFile:39)
        at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
        at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:93)
        at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:550)
        at net.minecraft.server.NetworkListenThread.a(SourceFile:108)
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:527)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:425)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:457)


14:57:53 [INFO] WorldEdit version 651-3dabcda