Plugin Help

Hi sorry for posting the code here but I was wondering if anyone could help me with this code it is set to when you left click on a player head it will say their head to you.

I dont know if im missing anything , as far as the plugin no errors in console and loads perfectly could be something with the listener idk.

Thanks in advance guys!


package com.lol.lmao;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.SkullType;
import org.bukkit.block.Skull;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.Action;
import org.bukkit.event.player.PlayerInteractEvent;
import org.bukkit.plugin.java.JavaPlugin;


public class Plugin extends JavaPlugin implements Listener {


public void onEnable() {
Bukkit.getServer().getLogger().info("PlayerInteractPlugin Enabled!");

}

public void onDisable() {
Bukkit.getServer().getLogger().info("PlayerInteractPlugin Enabled!");
}


@EventHandler
public void onPlayerInteract(PlayerInteractEvent e) {
//check if the player clicked a block, either left or right click
if(e.getAction() != Action.LEFT_CLICK_BLOCK
&& e.getAction() != Action.RIGHT_CLICK_BLOCK) {
return;
}
//check if player clicked a skull
if(e.getClickedBlock().getType() == Material.SKULL) {
Skull sk = (Skull) e.getClickedBlock().getState();
if(sk.getSkullType() == SkullType.PLAYER) {
e.getPlayer().sendMessage("Head Of ");
}
}

}}