Could not pass event EntityDamageByEntityEvent to RedProtect v5.2.3
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.callEvent(CraftEventFactory.java:86) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:539) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:452) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.handleNonLivingEntityDamageEvent(CraftEventFactory.java:590) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at org.bukkit.craftbukkit.v1_8_R2.event.CraftEventFactory.handleNonLivingEntityDamageEvent(CraftEventFactory.java:576) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.EntityArmorStand.damageEntity(EntityArmorStand.java:383) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.EntityArrow.t_(EntityArrow.java:242) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.World.entityJoinedWorld(World.java:1607) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.World.g(World.java:1582) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.World.tickEntities(World.java:1425) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.WorldServer.tickEntities(WorldServer.java:597) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:783) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_25]
Caused by: java.lang.NullPointerException
    at br.net.fabiozumbi12.RedProtect.Region.canBuild(Region.java:476) ~[?:?]
    at br.net.fabiozumbi12.RedProtect.RPArmorStand.onEntityDamageByPet(RPArmorStand.java:147) ~[?:?]
    at sun.reflect.GeneratedMethodAccessor904.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_25]
    at java.lang.reflect.Method.invoke(Method.java:483) ~[?:1.8.0_25]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot-1.8.3.jar:git-Spigot-870264a-0a645a2]
    ... 19 more