Solved onBlockPlaceEvent not working?

The event isnt firing?
my code:

Code:

 @EventHandler
    public void onBlockPlaceEvent(BlockPlaceEvent e)
    {
        Bukkit.getServer().broadcastMessage("h");
        Player p = e.getPlayer();
        if(e.getBlockPlaced().getType().equals(Material.SAND))
        {
            p.sendMessage("Dont!");
            e.setCancelled(true);
        }
    }

Solved forgot to register my event

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