Error in console says "Error occurred while enabling plugin v1.0 (is it up to date?)"

Console error below

[08:57:32 ERROR]: Error occurred while enabling Custom_Game_Crates v1.0 (Is it up to date?)
java.lang.NullPointerException: null
at me.Tregt315.GameCrates.commands.CustomLoot.<init>(CustomLoot.java:18) ~[?:?]
at me.Tregt315.GameCrates.Main.onEnable(Main.java:16) ~[?:?]


Code in main below

1 package me.Tregt315.GameCrates;
2
3 import org.bukkit.plugin.java.JavaPlugin;
4
5 import me.Tregt315.GameCrates.commands.CustomLoot;
6 import me.Tregt315.GameCrates.listeners.InventoryClickListener;
7 import me.Tregt315.GameCrates.ui.Crate_UI;
8
9 public class Main extends JavaPlugin {
10
11
12 @Override
13 public void onEnable() {
14 new CustomLoot(this);
15 new InventoryClickListener(this);
16 Crate_UI.initialize();
17 }
18
19 }

 

Code:

package me.Tregt315.GameCrates.commands;

import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.entity.Player;

import me.Tregt315.GameCrates.Main;
import me.Tregt315.GameCrates.ui.Crate_UI;

public class CustomLoot implements CommandExecutor{

    private Main plugin;
   
    public CustomLoot(Main plugin) {
        this.plugin = plugin;
       
        plugin.getCommand("test").setExecutor(this);
    }
   
    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
        if (!(sender instanceof Player))
        {
           
            return true;
       
    }
        Player p = (Player) sender;
       
        if(p.hasPermission("blah.blah")) {
            p.openInventory(Crate_UI.GUI(p));
           
        }
        return false;
    }
}

 

I did

name: Custom_Game_Crates
version: 1.0
main: me.Tregt315.GameCrates.Main

 

ok I will thanks

name: Custom_Game_Crates
version: 1.0
main: me.Tregt315.GameCrates.Main
commands:
basic:
description: Test Plugin
usage: /<command>

still putting out errors

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

 

thanks it is working now