I don't know what causes this, but here's the crash log, can someone help me please, that'll be great
code_language.skript:
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! [Skript] Severe Error:
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! If you're developing an add-on for Skript this likely means that you have done something wrong.
> [07:24:27 ERROR]: #!#! If you're a server admin however please go to http://dev.bukkit.org/server-mods/skript/tickets/
> [07:24:27 ERROR]: #!#! and check whether this error has already been reported.
> [07:24:27 ERROR]: #!#! If not please create a new ticket with a meaningful title, copy & paste this whole error into it,
> [07:24:27 ERROR]: #!#! and describe what you did before it happened and/or what you think caused the error.
> [07:24:27 ERROR]: #!#! If you think that it's a trigger that's causing the error please post the trigger as well.
> [07:24:27 ERROR]: #!#! By following this guide fixing the error should be easy and done fast.
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Stack trace:
> [07:24:27 ERROR]: #!#! ch.njol.skript.SkriptAPIException: UnparsedLiterals must be converted before use
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.UnparsedLiteral.invalidAccessException(UnparsedLiteral.java:275)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.UnparsedLiteral.getSingle(UnparsedLiteral.java:305)
> [07:24:27 ERROR]: #!#! at com.gmail.thelimeglass.Expressions.ExprMetadata.change(ExprMetadata.java:61)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.effects.EffChange.execute(EffChange.java:273)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.Effect.run(Effect.java:54)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:63)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:91)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.Trigger.execute(Trigger.java:53)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler.check(SkriptEventHandler.java:150)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler$1.execute(SkriptEventHandler.java:110)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:348)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:871)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
> [07:24:27 ERROR]: #!#! at java.lang.Thread.run(Thread.java:748)
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Version Information:
> [07:24:27 ERROR]: #!#! Skript: 2.2-Fixes-V8b
> [07:24:27 ERROR]: #!#! Bukkit: 1.8.8-R0.1-SNAPSHOT
> [07:24:27 ERROR]: #!#! Minecraft: 1.8.8
> [07:24:27 ERROR]: #!#! Java: 1.8.0_151 (Java HotSpot(TM) 64-Bit Server VM 25.151-b12)
> [07:24:27 ERROR]: #!#! OS: Linux amd64 3.10.0-693.11.1.el7.x86_64
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Running CraftBukkit: false
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Current node: null
> [07:24:27 ERROR]: #!#! Current item: delete/clear [(skellett|fixed)] meta[ ]data [value] %string% (of|in|within) %object%
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Thread: Server thread
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! End of Error.
> [07:24:27 ERROR]: #!#!
> [07:24:27 INFO]: [-] MainMinecraft
> [07:24:27 INFO]: Hosuke lost connection: Disconnected
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! [Skript] Severe Error:
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! If you're developing an add-on for Skript this likely means that you have done something wrong.
> [07:24:27 ERROR]: #!#! If you're a server admin however please go to http://dev.bukkit.org/server-mods/skript/tickets/
> [07:24:27 ERROR]: #!#! and check whether this error has already been reported.
> [07:24:27 ERROR]: #!#! If not please create a new ticket with a meaningful title, copy & paste this whole error into it,
> [07:24:27 ERROR]: #!#! and describe what you did before it happened and/or what you think caused the error.
> [07:24:27 ERROR]: #!#! If you think that it's a trigger that's causing the error please post the trigger as well.
> [07:24:27 ERROR]: #!#! By following this guide fixing the error should be easy and done fast.
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Stack trace:
> [07:24:27 ERROR]: #!#! ch.njol.skript.SkriptAPIException: UnparsedLiterals must be converted before use
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.UnparsedLiteral.invalidAccessException(UnparsedLiteral.java:275)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.UnparsedLiteral.getSingle(UnparsedLiteral.java:305)
> [07:24:27 ERROR]: #!#! at com.gmail.thelimeglass.Expressions.ExprMetadata.change(ExprMetadata.java:61)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.effects.EffChange.execute(EffChange.java:273)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.Effect.run(Effect.java:54)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:63)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.TriggerItem.walk(TriggerItem.java:91)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.lang.Trigger.execute(Trigger.java:53)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler.check(SkriptEventHandler.java:150)
> [07:24:27 ERROR]: #!#! at ch.njol.skript.SkriptEventHandler$1.execute(SkriptEventHandler.java:110)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502)
> [07:24:27 ERROR]: #!#! at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:348)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:871)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:814)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654)
> [07:24:27 ERROR]: #!#! at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557)
> [07:24:27 ERROR]: #!#! at java.lang.Thread.run(Thread.java:748)
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Version Information:
> [07:24:27 ERROR]: #!#! Skript: 2.2-Fixes-V8b
> [07:24:27 ERROR]: #!#! Bukkit: 1.8.8-R0.1-SNAPSHOT
> [07:24:27 ERROR]: #!#! Minecraft: 1.8.8
> [07:24:27 ERROR]: #!#! Java: 1.8.0_151 (Java HotSpot(TM) 64-Bit Server VM 25.151-b12)
> [07:24:27 ERROR]: #!#! OS: Linux amd64 3.10.0-693.11.1.el7.x86_64
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Running CraftBukkit: false
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Current node: null
> [07:24:27 ERROR]: #!#! Current item: delete/clear [(skellett|fixed)] meta[ ]data [value] %string% (of|in|within) %object%
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! Thread: Server thread
> [07:24:27 ERROR]: #!#!
> [07:24:27 ERROR]: #!#! End of Error.
> [07:24:27 ERROR]: #!#!