[14:42:24] [Server thread/ERROR]: #!#! Stack trace:
[14:42:24] [Server thread/ERROR]: #!#! java.lang.NullPointerException: Cannot invoke "org.bukkit.World.getMinHeight()" because "world" is null
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.bukkitutil.WorldUtils.getWorldMinHeight(WorldUtils.java:45)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.util.BlockLineIterator.fitInWorld(BlockLineIterator.java:90)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.util.BlockLineIterator.<init>(BlockLineIterator.java:62)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.expressions.ExprBlocks.iterator(ExprBlocks.java:160)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.sections.SecLoop.walk(SecLoop.java:135)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:88)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.Trigger.execute(Trigger.java:52)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.function.ScriptFunction.execute(ScriptFunction.java:86)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.function.Function.execute(Function.java:129)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.function.FunctionReference.execute(FunctionReference.java:301)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.function.EffFunctionCall.execute(EffFunctionCall.java:52)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.Effect.run(Effect.java:49)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:61)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:88)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.lang.Trigger.execute(Trigger.java:52)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.command.ScriptCommand.execute2(ScriptCommand.java:316)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.command.ScriptCommand.lambda$execute$0(ScriptCommand.java:275)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.command.ScriptCommand.execute(ScriptCommand.java:286)
[14:42:24] [Server thread/ERROR]: #!#!     at Skript.jar//ch.njol.skript.command.ScriptCommand.onCommand(ScriptCommand.java:221)
[14:42:24] [Server thread/ERROR]: #!#!     at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45)
[14:42:24] [Server thread/ERROR]: #!#!     at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:155)
[14:42:24] [Server thread/ERROR]: #!#!     at org.bukkit.craftbukkit.v1_20_R1.CraftServer.dispatchCommand(CraftServer.java:987)
[14:42:24] [Server thread/ERROR]: #!#!     at org.bukkit.craftbukkit.v1_20_R1.command.BukkitCommandWrapper.run(BukkitCommandWrapper.java:64)
[14:42:24] [Server thread/ERROR]: #!#!     at com.mojang.brigadier.CommandDispatcher.execute(CommandDispatcher.java:265)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.commands.CommandDispatcher.performCommand(CommandDispatcher.java:324)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.commands.CommandDispatcher.a(CommandDispatcher.java:308)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.network.PlayerConnection.a(PlayerConnection.java:2354)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.network.PlayerConnection.lambda$handleChatCommand$21(PlayerConnection.java:2314)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.util.thread.IAsyncTaskHandler.b(IAsyncTaskHandler.java:59)
[14:42:24] [Server thread/ERROR]: #!#!     at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1768)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.TickTask.run(TickTask.java:18)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.util.thread.IAsyncTaskHandler.d(IAsyncTaskHandler.java:153)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.util.thread.IAsyncTaskHandlerReentrant.d(IAsyncTaskHandlerReentrant.java:24)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.b(MinecraftServer.java:1338)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:197)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.util.thread.IAsyncTaskHandler.x(IAsyncTaskHandler.java:126)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.bg(MinecraftServer.java:1315)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.x(MinecraftServer.java:1308)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.util.thread.IAsyncTaskHandler.c(IAsyncTaskHandler.java:136)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.p_(MinecraftServer.java:1286)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1174)
[14:42:24] [Server thread/ERROR]: #!#!     at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:317)
[14:42:24] [Server thread/ERROR]: #!#!     at java.base/java.lang.Thread.run(Thread.java:833)
[14:42:24] [Server thread/ERROR]: #!#! 
[14:42:24] [Server thread/ERROR]: #!#! Version Information:
[14:42:24] [Server thread/ERROR]: #!#!   Skript: (custom version)
[14:42:24] [Server thread/ERROR]: #!#!     Flavor: selfbuilt-unknown
[14:42:24] [Server thread/ERROR]: #!#!     Date: unknown
[14:42:24] [Server thread/ERROR]: #!#!   Bukkit: 1.20.1-R0.1-SNAPSHOT
[14:42:24] [Server thread/ERROR]: #!#!   Minecraft: 1.20.1
[14:42:24] [Server thread/ERROR]: #!#!   Java: 17.0.8.1 (OpenJDK 64-Bit Server VM 17.0.8.1+8-LTS)
[14:42:24] [Server thread/ERROR]: #!#!   OS: Linux amd64 5.10.0-24-amd64
[14:42:24] [Server thread/ERROR]: #!#! 
[14:42:24] [Server thread/ERROR]: #!#! Server platform: Paper
[14:42:24] [Server thread/ERROR]: #!#! 
[14:42:24] [Server thread/ERROR]: #!#! Current node: null
[14:42:24] [Server thread/ERROR]: #!#! Current item: loop blocks below {_location} (as org.bukkit.Location)
[14:42:24] [Server thread/ERROR]: #!#! Current trigger: function waterWalk (simple event) (5/5.sk, line 31)