What Wrong My Code ?!

PHP:

public function PlayerMsg(Player $player) {
        $this->seconds = $this->seconds - 1;
        $player->sendPopup("آ§eThe game will start in $this->seconds second(s)!");
    }
}
class AutoTask extends PluginTask
{
    public function __construct(Plugin $owner) {
        parent::__construct($owner);
    }
    public function onRun($currentTick){
       
       
        $this->getOwner()->PlayerMsg();
    }}

PHP:

class AutoTask extends PluginTask {

    public $prefix;
    public $sec = 10;

    public function __construct($plugin, Player $player) {
        $this->plugin = $plugin;
        $this->player = $player;
        parent::__construct($plugin);
    }

    public function onRun($tick) {
        $this->sec--;
        if ($this->sec != 0) {
            $this->player->sendPopup(TextFormat::YELLOW . "The game will start in $this->seconds " . ($this->sec === 1) ? "second" : "seconds" . "!");
        } else {
            $this->player->sendPopup(TextFormat::YELLOW . "The game started!");
        }
    }

}

What's wrong with your code? Meh, everything.

PHP:

<?php

namespace TimeTask;

use pocketmine\plugin\PluginBase;
use pocketmine\scheduler\PluginTask;
use pocketmine\event\Listener;
use pocketmine\Player;
use pocketmine\utils\TextFormat as Color;

class Main extends PluginBase implements Listener{
  public $min = 20;
public function onEnable(){
    $this->getServer()->getScheduler()->scheduleRepeatingTask(new Timer($this), 60);
        $this->getLogger()->info(Color::GREEN."Has Enable !");
      
    }
  
}
class Timer extends PluginTask{
  public function __construct($plugin){
    $this->plugin = $plugin;
    parent::__construct($plugin);
  }

  public function onRun($tick){ //every minute the "timer" runs this function
    $this->plugin->min = $this->plugin->min - 1;
      foreach($this->plugin->getServer()->getOnlinePlayers() as $p){
        $p->sendPopup("Game starts in ".$this->plugin->min." minutes");
    if($this->plugin->min === 0){
      $p->sendMessage("Game Is End !");
    }
  }
}}

^ What Wrong This !

:facepalm: he created a Task class, no need for a file, he created the class on the main file.

PHP:

public function __construct(Main $plugin){ //add Main x)