[SOLVED]Player die in radius of location

got it working! well almost. it doesn't give me errors, but the server get a severe error all the time when i'm connected. when no one is on there's no errors.
assume it's the scheduling that's wrong somehow, maybe i should use the delayed version.

btw when i change plugin to this i get errors.
oh yea and when i go to the location that's supposed to harm me, nothing happens.
here's my code now:

Code:

     
this.getServer().getScheduler().scheduleAsyncRepeatingTask(this, new Runnable() {
              public void run() {
               
                  for (Player player : getServer().getOnlinePlayers()){
                      int duration = (plugin.getConfig().getInt("poisontime")*1200);
                   
                              double x = plugin.getConfig().getDouble("PL.X");
                            double y = plugin.getConfig().getDouble("PL.Y");
                            double z = plugin.getConfig().getDouble("PL.Z");
                            String World = getConfig().getString("PL.World");  //plugin.getConfig().getString("PL.world");
                            Location PoisonLoc = new Location(getServer().getWorld(World),x,y,z);
                            Location PlayerLocation = player.getLocation();
                            if( PlayerLocation.distance( PoisonLoc ) <= 5 )
                      {
                                player.addPotionEffect(new PotionEffect(PotionEffectType.POISON, duration, 1));
                          //PotionEffect effect = new PotionEffect(PotionEffectType.POISON,duration,1);
                          //effect.apply(getEntity());
                                //doesn't work
                      }
                      return ;
                  }
              }
            }, 60L, 20L);

found another way to do it, easier:

Code:

   
@EventHandler(priority = EventPriority.NORMAL)
    public void onMove(PlayerMoveEvent event){
        Player player = event.getPlayer();
        Location playerLocation = player.getLocation();
        int duration = (plugin.getConfig().getInt("poisontime")*1200);
        double x = plugin.getConfig().getDouble("PL.X");
        double y = plugin.getConfig().getDouble("PL.Y");
        double z = plugin.getConfig().getDouble("PL.Z");
        String World = plugin.getConfig().getString("PL.World");  //plugin.getConfig().getString("PL.world");
        Location PoisonLoc = new Location(plugin.getServer().getWorld(World),x,y,z);
        if(playerLocation.distance(PoisonLoc) < 5)
        {
            //player.sendMessage("warning! you are contaminated");
            player.addPotionEffect(new PotionEffect(PotionEffectType.POISON, duration, 1));
        }   
    }

EDIT by Moderator: merged posts, please use the edit button instead of double posting.