Config Not Showing

anyone can help me to show the
JoinMessage:
Broadcast:
theres no error!

i already input the
private $config;

PHP:

public function onPlayerJoin(PlayerJoinEvent $sender)
{
    
     /** TAGS PLAYERNAME */
     $seahjoinmsg = str_replace("{name}", $sender->getName(), $seahjoinmsg);
    
     /** GP JOIN MESSAGE */
     $config = $this->getConfig->get('GPJoinMessage');
    
          /** JOIN MESSAGE */
     $sender->sendMessage($this->getConfig()->get("JoinMessage"));
    
    /** BROADCAST MESSAGE */
     $broadcast = $this->getConfig()->get("Broadcast");
     $sender->getServer()->broadcastMessage($broadcast);
    
}

heres my config.yml

PHP:

# NOTE NOTE NOTE ! ! !
## dont remove or edit this "GPJoinMessage" or else you got a server crash
GPJoinMessage: #version 3.0.0

# Color Codes
# §0 = Black §1 = DarkBlue  §2 = DarkGreen  §3 = DarkAqua  §4 = DarkRed  §5 = DarkPurple §6 = Gold §7 = Gray §8 = DarkGray §9 = Blue a = Green §b = Aqua §c = Red §d = LightPurple §e = Yellow §f = White
# Format
# §k = Obfuscated §l = Bold §m = StrikeThrough §n = Underline §o = Italic §r = Reset

# JoinMessage
## tags {player} , {server_name}
## {player} = show Player Name
## {server_name} = show Server Name
JoinMessage: "JoinMessage"

# Broadcast
## tags {player} , {server_name}
## {player} = show Player Name
## {server_name} = show Server Name
Broadcast: "BroadcastMessage"

#  GPJoinMessage by SeahStar

 

$this->saveResource("config.yml");

 

what line ? in the bottom of the broadcast line?

 

sorry

PHP:

<?php

declare(strict_types=1);

namespace SeahStar\GPJoinMessage;

use pocketmine\event\Listener;
use pocketmine\event\player\PlayerJoinEvent;
use pocketmine\Player;
use pocketmine\plugin\PluginBase;
use pocketmine\utils\TextFormat;
use pocketmine\utils\Config;

class Main extends PluginBase implements Listener{
 
    private $config;
    
    public function onEnable()
{
    $this->saveDefaultConfig();
    $this->reloadConfig();
    $this->getLogger()->info("GPJoinMessage by SeahStar has been enabled!");

}

public function onPlayerJoin(PlayerJoinEvent $sender)
{
    
     /** TAGS PLAYERNAME */
     $seahjoinmsg = str_replace("{name}", $sender->getName(), $seahjoinmsg);
    
     /** GP JOIN MESSAGE */
     $config = $this->getConfig->get('GPJoinMessage');
    
          /** JOIN MESSAGE */
     $sender->sendMessage($this->getConfig()->get("JoinMessage"));
    
    /** BROADCAST MESSAGE */
     $broadcast = $this->getConfig()->get("Broadcast");
     $sender->getServer()->broadcastMessage($broadcast);
    
}

public function onDisable(){
        $this->getLogger()->info("GPJoinMessage by SeahStar has been disabled!");
      }


         }

this is my whole main.php

 

PHP:

public function onEnable() {
    $this->saveResource("config.yml");
}