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java.lang.NullPointerException: 	at me.libraryaddict.disguise.disguisetypes.Disguise.createDisguise(Disguise.java:124)	at me.libraryaddict.disguise.disguisetypes.MobDisguise.(MobDisguise.java:31)	at me.libraryaddict.disguise.disguisetypes.MobDisguise.(MobDisguise.java:19)	at be.isach.ultracosmetics.cosmetics.morphs.Morph.(Morph.java:55)	at be.isach.ultracosmetics.cosmetics.morphs.MorphWitherSkeleton.(MorphWitherSkeleton.java:30)	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)	at be.isach.ultracosmetics.cosmetics.morphs.MorphType.equip(MorphType.java:98)	at be.isach.ultracosmetics.manager.MorphManager$3.run(MorphManager.java:171)	at be.isach.ultracosmetics.manager.MorphManager.equipMorph(MorphManager.java:173)	at be.isach.ultracosmetics.manager.MorphManager.morphSelection(MorphManager.java:283)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:497)	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306)	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1630)	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:31)	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:9)	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44)	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715)	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)	at java.lang.Thread.run(Thread.java:745)