2011-08-18 19:57:49 [SEVERE] Could not pass event CUSTOM_EVENT to HawkEye
java.lang.NullPointerException
at uk.co.oliwali.HawkEye.entry.DataEntry.setInfo(DataEntry.java:189)
at uk.co.oliwali.HawkEye.entry.DataEntry.setInfo(DataEntry.java:178)
at uk.co.oliwali.HawkEye.entry.DataEntry.setInfo(DataEntry.java:175)
at uk.co.oliwali.HawkEye.entry.ContainerEntry.(ContainerEntry.java:27)
at uk.co.oliwali.HawkEye.listeners.MonitorInventoryListener.onInventoryClose(MonitorInventoryListener.java:33)
at org.getspout.spoutapi.event.inventory.InventoryListener.onCustomEvent(InventoryListener.java:32)
at org.bukkit.plugin.java.JavaPluginLoader$88.execute(JavaPluginLoader.java:862)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:338)
at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:169)
at net.minecraft.server.Packet101CloseWindow.a(SourceFile:16)
at net.minecraft.server.NetworkManager.b(NetworkManager.java:226)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:89)
at org.getspout.spout.SpoutNetServerHandler.a(SpoutNetServerHandler.java:435)
at net.minecraft.server.NetworkListenThread.a(SourceFile:105)
at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:454)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:363)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)

I cannot find any reason for this to happen. Will keep an eye on this.