Skript Error

[MusicManSK]

Hello!
I have some kind of error which i never seen before so i dont know where i should post this post..
So my error is:

Spoiler: Error

[11:10:41 ERROR]: #!#!
[11:10:41 ERROR]: #!#! [Skript] Severe Error:
[11:10:41 ERROR]: #!#!
[11:10:41 ERROR]: #!#! Something went horribly wrong with Skript.
[11:10:41 ERROR]: #!#! This issue is NOT your fault! You probably can't fix it yourself, either.
[11:10:41 ERROR]: #!#! It looks like you are using some plugin(s) that alter how Skript works (addons).
[11:10:41 ERROR]: #!#! Here is full list of them:
[11:10:41 ERROR]: #!#! skRayFall (http://sk.rayfall.net/) SkriptJSON skDragon SkStuff skUtilities (https://tim740.github.io/) SkQuery Skellett (https://forums.skunity.com/resources/skellett-the-addon-with-a-beast-name.24/) Reqn
[11:10:41 ERROR]: #!#! We could not identify which of those are specially related, so this might also be Skript issue.
[11:10:41 ERROR]: #!#! You should try disabling those plugins one by one, trying to find which one causes it.
[11:10:41 ERROR]: #!#! If the error doesn't disappear even after disabling all listed plugins, it is probably Skript issue.
[11:10:41 ERROR]: #!#! In that case, you will be given instruction on how should you report it.
[11:10:41 ERROR]: #!#! On the other hand, if the error disappears when disabling some plugin, report it to author of that plugin.
[11:10:41 ERROR]: #!#! Only if the author tells you to do so, report it as Skript issue (url below)
[11:10:41 ERROR]: #!#! Issue tracker: https://github.com/bensku/Skript/issues (only if you know what you're doing!)
[11:10:41 ERROR]: #!#!
[11:10:41 ERROR]: #!#! Stack trace:
[11:10:41 ERROR]: #!#! java.lang.NullPointerException
[11:10:41 ERROR]: #!#! at com.gmail.thelimeglass.Expressions.ExprWorldOfLocation.get(ExprWorldOfLocation.java:49)
[11:10:41 ERROR]: #!#! at com.gmail.thelimeglass.Expressions.ExprWorldOfLocation.get(ExprWorldOfLocation.java:1)
[11:10:41 ERROR]: #!#! at ch.njol.skript.lang.util.SimpleExpression.check(SimpleExpression.java:163)
[11:10:41 ERROR]: #!#! at ch.njol.skript.conditions.CondCompare.check(CondCompare.java:258)
[11:10:41 ERROR]: #!#! at ch.njol.skript.lang.Condition.run(Condition.java:56)
[11:10:41 ERROR]: #!#! at ch.njol.skript.lang.Conditional.walk(Conditional.java:51)
[11:10:41 ERROR]: #!#! at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:89)
[11:10:41 ERROR]: #!#! at ch.njol.skript.lang.Trigger.execute(Trigger.java:55)
[11:10:41 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler.check(SkriptEventHandler.java:151)
[11:10:41 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler$1.execute(SkriptEventHandler.java:109)
[11:10:41 ERROR]: #!#! at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
[11:10:41 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:499)
[11:10:41 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484)
[11:10:41 ERROR]: #!#! at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEvent(CraftEventFactory.java:92)
[11:10:41 ERROR]: #!#! at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.callEntityDamageEvent(CraftEventFactory.java:579)
[11:10:41 ERROR]: #!#! at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleEntityDamageEvent(CraftEventFactory.java:565)
[11:10:41 ERROR]: #!#! at org.bukkit.craftbukkit.v1_12_R1.event.CraftEventFactory.handleLivingEntityDamageEvent(CraftEventFactory.java:611)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity0(EntityLiving.java:1339)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityLiving.damageEntity(EntityLiving.java:863)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityMonster.damageEntity(EntityMonster.java:44)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityZombie.damageEntity(EntityZombie.java:163)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.Entity.Y(Entity.java:433)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityLiving.Y(EntityLiving.java:199)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityInsentient.Y(EntityInsentient.java:186)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.Entity.B_(Entity.java:314)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityLiving.B_(EntityLiving.java:1866)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityInsentient.B_(EntityInsentient.java:246)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.EntityMonster.B_(EntityMonster.java:28)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.World.entityJoinedWorld(World.java:1640)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.World.h(World.java:1610)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.World.tickEntities(World.java:1436)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.WorldServer.tickEntities(WorldServer.java:665)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:814)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:405)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:678)
[11:10:41 ERROR]: #!#! at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:576)
[11:10:41 ERROR]: #!#! at java.lang.Thread.run(Unknown Source)
[11:10:41 ERROR]: #!#!
[11:10:41 ERROR]: #!#! Version Information:
[11:10:41 ERROR]: #!#! Skript: 2.2-dev35b (latest)
[11:10:41 ERROR]: #!#! Bukkit: 1.12-R0.1-SNAPSHOT
[11:10:41 ERROR]: #!#! Minecraft: 1.12
[11:10:42 ERROR]: #!#! Java: 1.8.0_144 (Java HotSpot(TM) 64-Bit Server VM 25.144-b01)
[11:10:42 ERROR]: #!#! OS: Windows 10 amd64 10.0
[11:10:42 ERROR]: #!#!
[11:10:42 ERROR]: #!#! Server platform: Spigot
[11:10:42 ERROR]: #!#!
[11:10:42 ERROR]: #!#! Current node: null
[11:10:42 ERROR]: #!#! Current item: [skellett] world (of|from) [location] %location% is equal to "kitpvp" (comparator: ch.njol.skript.classes.data.DefaultComparators$14@61511ea5)
[11:10:42 ERROR]: #!#! Current trigger: damage (damage) (kitpvp.sk, line 137)
[11:10:42 ERROR]: #!#!
[11:10:42 ERROR]: #!#! Thread: Server thread
[11:10:42 ERROR]: #!#!
[11:10:42 ERROR]: #!#! Language: english
[11:10:42 ERROR]: #!#! Link parse mode: DISABLED
[11:10:42 ERROR]: #!#!
[11:10:42 ERROR]: #!#! End of Error.
[11:10:42 ERROR]: #!#!

And code where probably mistake is:

on damage:
    if world of victim is {@Map}:
        projectile exists
        projectile is a snowball
        victim is player
        attacker is player
        set {_victim} to location of victim
        set {_attacker} to location of attacker
        teleport attacker to {_victim}
        teleport victim to {_attacker}
        send "&aYou have been teleported to location of &b%victim%" to attacker
        send "&aYou have been teleported to location of &b%attacker%" to victim
    if world of attacker is {@Map}:
        if name of tool of attacker is "&4&lBlood&c&lSword":
            heal attacker by 0.5

Plese help me with it!
It every time spamming console

 

[ShaneBee]

try something like
world of location of attacker/victim
I believe the syntax is looking for the world of a location not the world of a player

 

[MusicManSK]

so...
I have found out that its caused by damaging entities by lava... so i made some conditions and errors are gone... but i dont know how long.. maybe forever... maybe not.. so ill try it with players and every combination of attacker and victim and ill returt here and tell you how it is works...