15:11:26 [SEVERE] Error occurred while disabling BanManager v3.0 (Is it up to date?)
java.lang.NullPointerException
        at me.confuserr.banmanager.BanManager.onDisable(BanManager.java:81)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:219)
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:481)
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:401)
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:394)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.disablePlugins(CraftServer.java:300)
        at net.minecraft.server.v1_5_R3.MinecraftServer.stop(MinecraftServer.java:340)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:436)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)