Bukkit

So i'm getting this https://gyazo.com/6c5403fafbea3db5317bbf5a7eee4a19 that's not normal is it? :P

:D No its not! Are you using the latest version of Rolecraft ? Which version of bukkit are you using ?

Using the last update for rolecraft, and same for spigot

So any updates?, also the plugin npc move around when you restart the server

I will upload an update today, if it still doesn't work contact me again.

They are less "moving around" but still doing it, now when they see mobs they will kill them but they will keep doing it and run away.

Also keep getting this error

Could not pass event EntityDamageByEntityEvent to Rolecraft v3.2.3 org.bukkit.event.EventException: null at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:499) [server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:92) [server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:577) [server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:482) [server.jar:git-Spigot-23b6354-0481ae9] at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:609) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity0(EntityLiving.java:1339) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity(EntityLiving.java:863) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityMonster.damageEntity(EntityMonster.java:44) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityArrow.a(EntityArrow.java:286) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityArrow.B_(EntityArrow.java:194) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.EntityTippedArrow.B_(EntityTippedArrow.java:86) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.World.entityJoinedWorld(World.java:1639) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.World.h(World.java:1609) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.World.tickEntities(World.java:1435) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.WorldServer.tickEntities(WorldServer.java:665) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:814) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678) [server.jar:git-Spigot-23b6354-0481ae9] at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576) [server.jar:git-Spigot-23b6354-0481ae9] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_131] Caused by: java.lang.ClassCastException: org.bukkit.craftbukkit.v1_12_R1.entity.CraftArrow cannot be cast to org.bukkit.entity.LivingEntity at org.caliog.Rolecraft.XMechanics.Listeners.DamageListener.onMobDamagedByMob(DamageListener.java:111) ~[?:?] at org.caliog.Rolecraft.XMechanics.Listeners.DamageListener.onDamage(DamageListener.java:102) ~[?:?] at sun.reflect.GeneratedMethodAccessor219.invoke(Unknown Source) ~[?:?] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_131] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_131] at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[server.jar:git-Spigot-23b6354-0481ae9] ... 22 more

Also with the most up to date version of both bukkit and spigot, it still outputs "[23:22:04] [Server thread/WARN]: [Rolecraft] Guards will not work with your bukkit version. "

So which version are you using exactly?

I'm using 1.12 [the last build] of spigot and rolecraft Rolecraft v3.2.3

mobs are not spawning after a area as been set. 

EDIT: 

After a restart then they don't spawn again.

I updated again, please try if this error is still appearing and if the guard heads act naturally now.

Heads are good now, but the mob zones delete itself after a restart, so does the guards they depsawn