CRAFTBOOK-2684 - Reported by Swords761

Got a new SEVERE NPE error for you that keeps popping up- seems to be related to PaintingSwitch?

[SEVERE] Could not pass event PlayerInteractEntityEvent to CraftBook v2539-bed519d
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:47)
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:478)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:463)
at net.minecraft.server.v1_6_R2.PlayerConnection.a(PlayerConnection.java:1115)
at net.minecraft.server.v1_6_R2.Packet7UseEntity.handle(SourceFile:36)
at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:230)
at net.minecraft.server.v1_6_R2.PlayerConnection.e(PlayerConnection.java:116)
at net.minecraft.server.v1_6_R2.ServerConnection.b(SourceFile:37)
at org.spigotmc.netty.NettyServerConnection.b(NettyServerConnection.java:125)
at net.minecraft.server.v1_6_R2.MinecraftServer.t(MinecraftServer.java:592)
at net.minecraft.server.v1_6_R2.DedicatedServer.t(DedicatedServer.java:239)
at net.minecraft.server.v1_6_R2.MinecraftServer.s(MinecraftServer.java:481)
at net.minecraft.server.v1_6_R2.MinecraftServer.run(MinecraftServer.java:413)
at net.minecraft.server.v1_6_R2.ThreadServerApplication.run(SourceFile:582)
Caused by: java.lang.NullPointerException
at com.sk89q.craftbook.mech.PaintingSwitch.isBeingEdited(PaintingSwitch.java:32)
at com.sk89q.craftbook.mech.PaintingSwitch.onPlayerInteractEntity(PaintingSwitch.java:49)
at sun.reflect.GeneratedMethodAccessor596.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.java:425)
... 15 more

Comment by me4502

Fixed.