[20:10:39 ERROR]: Could not pass event PlayerInteractEntityEvent to Citizens v2.0.30-SNAPSHOT (build 2843)
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:517) [patched_1.8.8.jar:git-PaperSpigot-445]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:502) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1342) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PacketPlayInUseEntity.a(SourceFile:52) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PacketPlayInUseEntity.a(SourceFile:11) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [patched_1.8.8.jar:git-PaperSpigot-445]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) [?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) [?:?]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:774) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [patched_1.8.8.jar:git-PaperSpigot-445]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [patched_1.8.8.jar:git-PaperSpigot-445]
at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.NoSuchMethodError: 'org.bukkit.inventory.EquipmentSlot org.bukkit.event.player.PlayerInteractEntityEvent.getHand()'
at net.citizensnpcs.EventListen.onPlayerInteractEntity(EventListen.java:485) ~[?:?]
at jdk.internal.reflect.GeneratedMethodAccessor59.invoke(Unknown Source) ~[?:?]
at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[patched_1.8.8.jar:git-PaperSpigot-445]