Solved Teleport plugin

The plugin loads but if I type /hub nothing happens, why?

PHP:

<?php

namespace IchHackeNet;

use pocketmine\plugin\PluginBase;
use pocketmine\command\CommandSender;
use pocketmine\command\Command;

class Main extends PluginBase{

    public function onEnable(){
        $this->getLogger()->info("Hub geladen");
        $this->getServer()->loadLevel("Lobby");   
    }

    public function onCommand(CommandSender $sender, Command $command, string $label, array $args) : bool{
        switch($command->getName()){
            case "hub":
                $sender->sendMessage("§eEresia§6MC§7 > §b §7Du wurdest zum §bHub §7teleportiert!");
                $sender->teleport($this->getServer()->getLevelByName("Lobby")->getSafeSpawn());
                return true;
                default:
                return false;
        }
      
        }
    }

Code:

name: Hub-
main: IchHackeNet\Main
version: 0.0.1
api: 3.12.0
load: POSTWORLD
author: IchHackeNet
description: Hub
commands:
hub:
description: "§eEresia§6MC§7 > §Hub"
aliases: ["lobby", "spawn"]

 

PHP:

$this->getServer()->loadLevel("Lobby");
$lobby = $this->getServer()->getLevelByName("Lobby");
if ($lobby instanceof Level) {
  $sender->teleport($lobby->getSafeSpawn());
}

 

PHP:

<?php

namespace IchHackeNet;

use pocketmine\plugin\PluginBase;
use pocketmine\command\CommandSender;
use pocketmine\command\Command;

class Main extends PluginBase{

    public function onEnable(){
        $this->getLogger()->info("Hub geladen");   
    }

    public function onCommand(CommandSender $sender, Command $command, string $label, array $args) : bool{
        switch($command->getName()){
            case "hub":
                $this->getServer()->loadLevel("Lobby");

$lobby = $this->getServer()->getLevelByName("Lobby");

if ($lobby instanceof Level) {
  $sender->teleport($lobby->getSafeSpawn());
}
        }
        }
        }

This don't work

 

You forgot

PHP:

use pocketmine\level\Level;