10:18:06 [SEVERE] Error occurred while disabling Death and Rebirth v2.5.3b (Is it up to date?)
java.lang.NullPointerException
        at muCkk.DeathAndRebirth.DAR.onDisable(DAR.java:48)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:369)
        at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:382)
        at org.bukkit.plugin.SimplePluginManager.disablePlugins(SimplePluginManager.java:375)
        at org.bukkit.craftbukkit.CraftServer.disablePlugins(CraftServer.java:220)
        at net.minecraft.server.MinecraftServer.stop(MinecraftServer.java:385)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:465)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:465)