Stack trace:
[15:33:48 ERROR]: #!#! java.lang.IllegalStateException: Cannot use classinfos until registration is over
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.checkAllowClassInfoInteraction(Classes.java:241)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.getClassInfos(Classes.java:246)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.parseSimple(Classes.java:415)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.parse(Classes.java:450)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseSingleExpr(SkriptParser.java:366)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseExpression(SkriptParser.java:627)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseExpression(SkriptParser.java:617)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadItems(ScriptLoader.java:990)
[15:33:48 ERROR]: #!#! at ch.njol.skript.command.Commands.loadCommand(Commands.java:500)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScript(ScriptLoader.java:621)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.lambda$1(ScriptLoader.java:389)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScripts(ScriptLoader.java:401)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.lambda$0(ScriptLoader.java:331)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScripts(ScriptLoader.java:361)
[15:33:48 ERROR]: #!#! at ch.njol.skript.Skript.reload(Skript.java:786)
[15:33:48 ERROR]: #!#! at ch.njol.skript.SkriptCommand.onCommand(SkriptCommand.java:154)
[15:33:48 ERROR]: #!#! at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
[15:33:48 ERROR]: #!#! at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
[15:33:48 ERROR]: #!#! at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13)
[15:33:48 ERROR]: #!#! at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
[15:33:48 ERROR]: #!#! at java.util.concurrent.FutureTask.run(Unknown Source)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537)
[15:33:48 ERROR]: #!#! at java.lang.Thread.run(Unknown Source)
[15:33:48 ERROR]: #!#! java.lang.IllegalStateException: Cannot use classinfos until registration is over
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.checkAllowClassInfoInteraction(Classes.java:241)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.getClassInfos(Classes.java:246)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.parseSimple(Classes.java:415)
[15:33:48 ERROR]: #!#! at ch.njol.skript.registrations.Classes.parse(Classes.java:450)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseSingleExpr(SkriptParser.java:366)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseExpression(SkriptParser.java:627)
[15:33:48 ERROR]: #!#! at ch.njol.skript.lang.SkriptParser.parseExpression(SkriptParser.java:617)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadItems(ScriptLoader.java:990)
[15:33:48 ERROR]: #!#! at ch.njol.skript.command.Commands.loadCommand(Commands.java:500)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScript(ScriptLoader.java:621)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.lambda$1(ScriptLoader.java:389)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScripts(ScriptLoader.java:401)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.lambda$0(ScriptLoader.java:331)
[15:33:48 ERROR]: #!#! at ch.njol.skript.ScriptLoader.loadScripts(ScriptLoader.java:361)
[15:33:48 ERROR]: #!#! at ch.njol.skript.Skript.reload(Skript.java:786)
[15:33:48 ERROR]: #!#! at ch.njol.skript.SkriptCommand.onCommand(SkriptCommand.java:154)
[15:33:48 ERROR]: #!#! at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
[15:33:48 ERROR]: #!#! at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
[15:33:48 ERROR]: #!#! at org.bukkit.craftbukkit.v1_8_R1.CraftServer.dispatchCommand(CraftServer.java:646)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PlayerConnection.handleCommand(PlayerConnection.java:1115)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:950)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:26)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketPlayInChat.a(PacketPlayInChat.java:53)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13)
[15:33:48 ERROR]: #!#! at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
[15:33:48 ERROR]: #!#! at java.util.concurrent.FutureTask.run(Unknown Source)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:696)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:634)
[15:33:48 ERROR]: #!#! at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:537)
[15:33:48 ERROR]: #!#! at java.lang.Thread.run(Unknown Source)