[01:03:35] [Server thread/ERROR]: Could not pass event NPCRightClickEvent to MangoQuest v1.7.7v1
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.citizensnpcs.EventListen.onPlayerInteractEntity(EventListen.java:414) [Citizens.jar:?]
	at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_121]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1537) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.PacketPlayInUseEntity.a(SourceFile:69) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.PacketPlayInUseEntity.a(SourceFile:13) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_121]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_121]
	at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:747) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:678) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:576) [Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]
Caused by: java.lang.NullPointerException
	at me.Cutiemango.MangoQuest.objects.QuestNPC.getMessage(QuestNPC.java:46) ~[?:?]
	at me.Cutiemango.MangoQuest.manager.QuestNPCManager.getNPCMessage(QuestNPCManager.java:49) ~[?:?]
	at me.Cutiemango.MangoQuest.manager.QuestBookGUIManager.openNPCInfo(QuestBookGUIManager.java:284) ~[?:?]
	at me.Cutiemango.MangoQuest.listeners.PlayerListener.onNPCRightClick(PlayerListener.java:63) ~[?:?]
	at me.Cutiemango.MangoQuest.listeners.MainListener.onNPCRightClick(MainListener.java:88) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor58.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_121]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[Minecraft-server.jar:git-Spigot-3fb9445-6e3cec8]
	... 23 more