Get an Error when right clicking on NPC Quester / Quest->Edit Settings Button

[ThatBenderGuy]

So this is the error that is given to me when I right click an NPC (Quester if that makes a difference)

01:32:58 [SEVERE] Could not pass event PlayerInteractEntityEvent to RpgEssentials v1.4.3
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.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
at net.minecraft.server.v1_4_R1.PlayerConnection.a(PlayerConnection.java:1097)
at net.minecraft.server.v1_4_R1.Packet7UseEntity.handle(SourceFile:36)
at net.minecraft.server.v1_4_R1.NetworkManager.b(NetworkManager.java:290)
at net.minecraft.server.v1_4_R1.PlayerConnection.d(PlayerConnection.java:113)
at org.getspout.spout.SpoutPlayerConnection.d(SpoutPlayerConnection.java:196)
at net.minecraft.server.v1_4_R1.ServerConnection.b(SourceFile:39)
at net.minecraft.server.v1_4_R1.DedicatedServerConnection.b(SourceFile:30)
at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:598)
at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NoSuchMethodError: com.topcat.npclib.entity.NPC.getBukkitEntity()Lorg/bukkit/entity/
Entity;
at me.duckdoom5.RpgEssentials.Listeners.RpgEssentialsPlayerListener.onPlayerInteractEntity(RpgEss
entialsPlayerListener.java:306)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
... 15 more

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And this is the one I get for clicking on "Edit Settings" in the quest area

01:32:54 [SEVERE] Could not pass event ButtonClickEvent to RpgQuests v1.0
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.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
at org.getspout.spoutapi.packet.PacketControlAction.run(PacketControlAction.java:115)
at org.getspout.spout.packet.CustomPacket.handle(CustomPacket.java:139)
at net.minecraft.server.v1_4_R1.NetworkManager.b(NetworkManager.java:290)
at net.minecraft.server.v1_4_R1.PlayerConnection.d(PlayerConnection.java:113)
at org.getspout.spout.SpoutPlayerConnection.d(SpoutPlayerConnection.java:196)
at net.minecraft.server.v1_4_R1.ServerConnection.b(SourceFile:39)
at net.minecraft.server.v1_4_R1.DedicatedServerConnection.b(SourceFile:30)
at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:598)
at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:494)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:427)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NoSuchMethodError: com.topcat.npclib.entity.NPC.getBukkitEntity()Lorg/bukkit/entity/
Entity;
at me.duckdoom5.RpgEssentials.RpgQuests.GUI.Settings.(Settings.java:83)
at me.duckdoom5.RpgEssentials.RpgQuests.Listeners.ScreenListener.onButtonClick(ScreenListener.jav
a:109)
at sun.reflect.GeneratedMethodAccessor293.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
... 15 more

Running CB:1.4.7R1.0
Running RPGEs:1.4.3 DEV

Plugin List: (Incase of known conflict)
BOSEconomy
Catacombs
ChestShop
Citizens
CombatTag
CommandBook
CommandSigns
CraftBook
Denizen
EpicBossRecoded
Essentials /AntiBuild/Chat/GroupBridge/Protect/Spawn
FlatlandsBuilder
iGates
MobArena
Multiverse Core/Portals
PluginsBaker
ProtocolLib 1.9.0 / 2.1.0
Punishmental
RpgEssentials Banks/Deahts/Leveling/Quests/Regions/Stores
Sentry
SkylandPlus
SpoutPlugin
Vault
VoxelSniper
WorldEdit
WorldGuard

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Also my npcs despawn on server restart.

If you could fix these that would really be appreciated :)