2012-01-28 07:31:22 [SEVERE] Error occurred while enabling MobArena v0.94.3.24 (Is it up to date?): com/nisovin/magicspells/events/SpellListener
java.lang.NoClassDefFoundError: com/nisovin/magicspells/events/SpellListener
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
	at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:224)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:37)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at com.garbagemule.MobArena.MobArena.setupMagicSpells(MobArena.java:199)
	at com.garbagemule.MobArena.MobArena.onEnable(MobArena.java:71)
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:231)
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:1057)
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:379)
	at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:191)
	at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:174)
	at net.minecraft.server.MinecraftServer.t(MinecraftServer.java:356)
	at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:343)
	at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:175)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:407)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)
Caused by: java.lang.ClassNotFoundException: com.nisovin.magicspells.events.SpellListener
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:41)
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:29)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	... 27 more