CustomPvPdrops

hey guys dont know what the freak im doing wrong here
its for 1.16
its made in Java 1.8 because i dont find new java jre iam new into making plugins

Code:

package me.pain.customkilldrops;

import org.bukkit.ChatColor;
import org.bukkit.Material;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;


public class Main extends JavaPlugin implements Listener {

    public void onEnable() {
        System.out.println("CustomKillDrops enabled!");
    }
 
    public void onDisable() {
        System.out.println("CustomKillDrops disabled!");
    }
    @EventHandler
    public void pvpKill(PlayerDeathEvent e) { // Event
        ItemStack item = new ItemStack(Material.WITHER_ROSE, 1); //Item das Gedroppt wird
        ItemMeta meta = item.getItemMeta();
        meta.setDisplayName(ChatColor.BLACK + "Wither_Coin"); //Item Name
        Player v = (Player) e.getEntity();
        Player p = v.getKiller();
        if (p instanceof Player) {
            e.getDrops().add(item);
        p.sendMessage(ChatColor.GREEN + "Du hast" + v.getName() + "getötet!"); //Nachricht für denn Killer
        v.sendMessage(ChatColor.RED + "Du wurdest von" +p.getName() + "getötet!"); //Nachricht für denn Getöten Spieler
        }
    }
}

it should dropped the item i made when a player gets killed in pvp
the plugin loads and seems fine but when i kill player nothing dropps