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2013-02-02 17:13:24 [SEVERE] Error occurred while enabling MobArena v0.94.4.94 (Is it up to date?)
java.lang.IllegalArgumentException: Block must be a sign!
at com.garbagemule.MobArena.leaderboards.Leaderboard.<init>(Leaderboard.java:64)
at com.garbagemule.MobArena.ArenaImpl.<init>(ArenaImpl.java:139)
at com.garbagemule.MobArena.ArenaMasterImpl.loadArena(ArenaMasterImpl.java:556)
at com.garbagemule.MobArena.ArenaMasterImpl.loadArenasInWorld(ArenaMasterImpl.java:511)
at com.garbagemule.MobArena.ArenaMasterImpl.loadArenas(ArenaMasterImpl.java:495)
at com.garbagemule.MobArena.ArenaMasterImpl.initialize(ArenaMasterImpl.java:244)
at com.garbagemule.MobArena.MobArena.onEnable(MobArena.java:82)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:458)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:383)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugin(CraftServer.java:308)
at org.bukkit.craftbukkit.v1_4_R1.CraftServer.enablePlugins(CraftServer.java:290)
at net.minecraft.server.v1_4_R1.MinecraftServer.j(MinecraftServer.java:326)
at net.minecraft.server.v1_4_R1.MinecraftServer.e(MinecraftServer.java:305)
at net.minecraft.server.v1_4_R1.MinecraftServer.a(MinecraftServer.java:264)
at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:149)
at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:404)
at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)