1:47:05 PM [severe] Something when wrong while trying to load up break_block:
1:47:05 PM [severe] java.lang.ClassNotFoundException: net.minecraft.server.World
1:47:06 PM [severe] at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:70)
1:47:06 PM [severe] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53)
1:47:06 PM [severe] at java.lang.ClassLoader.loadClass(Unknown Source)
1:47:06 PM [severe] at java.lang.ClassLoader.loadClass(Unknown Source)
1:47:06 PM [severe] at java.lang.Class.getDeclaredConstructors0(Native Method)
1:47:06 PM [severe] at java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
1:47:06 PM [severe] at java.lang.Class.getConstructor0(Unknown Source)
1:47:06 PM [severe] at java.lang.Class.newInstance0(Unknown Source)
1:47:06 PM [severe] at java.lang.Class.newInstance(Unknown Source)
1:47:06 PM [severe] at com.laytonsmith.core.functions.FunctionList.initFunctions(FunctionList.java:40)
1:47:06 PM [severe] at com.laytonsmith.core.functions.FunctionList.<clinit>(FunctionList.java:28)
1:47:06 PM [severe] at com.laytonsmith.core.MScriptCompiler.compile(MScriptCompiler.java:408)
1:47:06 PM [severe] at com.laytonsmith.core.AliasCore.reload(AliasCore.java:265)
1:47:06 PM [severe] at com.laytonsmith.core.AliasCore.<init>(AliasCore.java:56)
1:47:06 PM [severe] at com.laytonsmith.commandhelper.CommandHelperPlugin.onEnable(CommandHelperPlugin.java:130)