Position world is null

Hi!
1. I get set all right and it gives no error but when I run /stop and try to teleport to the world in the coords without set again simply returns "Internal Server"


config.yml

PHP:

---
Spawn:
  x: 255.700000
  "y": 70.000000
  z: 255.700000
  mundo: worldtw
  yy: 0
Spawn1:
  x: 256.566500
  "y": 66.000000
  z: 252.873400
Spawn2:
  x: 256.692000
  "y": 66.000000
  z: 258.605800
...

// code: Main
    public function initArena(){
        $data = $this->config->getAll();
        $world = false;
        if($data['Spawn']){
            if(!$data['Spawn']['mundo']){
                return $this->getServer()->getDefaultLevel()->getName();
            }else{
                return $data['Spawn']['mundo'];
            }
        }else{
            return $data['Spawn']['mundo'];
        }
    }

    public function getWorld(){
        return $this->config->getAll()['Spawn']['mundo'];
    }

    public function getY(){
        $y = $this->config->getAll()['Spawn']['yy'];
        return $y;
    }

    public function getSSpawn($value = false){
        $data = $this->config->getAll()['Spawn'];

        $x = $data['x'];
        $y = $data['y'];
        $z = $data['z'];

        if($value){

            $mundo = $data['mundo'];

            $pos = new Position($x, $y, $z, $this->getServer()->getLevelByName($mundo));

            return $pos;
        }else{
            $pos = new Vector3($x, $y, $z);
            return $pos;
        }
    }

// error
[04:59:58] [Server thread/CRITICAL]: pocketmine\utils\AssumptionFailedError: "Position world is null" (EXCEPTION) in "src/pocketmine/level/Position" at line 83

[04:59:58] [Server thread/CRITICAL]: #0 src/pocketmine/entity/Entity(1875): pocketmine\level\Position->getLevelNonNull()

[04:59:58] [Server thread/CRITICAL]: #1 src/pocketmine/Player(3943): pocketmine\entity\Entity->teleport(object pocketmine\level\Position, NULL , NULL )

[04:59:58] [Server thread/CRITICAL]: #2 plugins/x/src/x/x/Manager(113): pocketmine\Player->teleport(object pocketmine\level\Position)

[04:59:58] [Server thread/CRITICAL]: #3 plugins/x/src/xx/Main(741): x\x\x->join(object pocketmine\Player)

[04:59:58] [Server thread/CRITICAL]: #4 src/pocketmine/command/PluginCommand(54): x\x\Main->onCommand(object pocketmine\Player, object pocketmine\command\PluginCommand, string[6] x, array[1])

[04:59:58] [Server thread/CRITICAL]: #5 src/pocketmine/command/SimpleCommandMap(248): pocketmine\command\PluginCommand->execute(object pocketmine\Player, string[6] x, array[1])

[04:59:58] [Server thread/CRITICAL]: #6 src/pocketmine/Server(1811): pocketmine\command\SimpleCommandMap->dispatch(object pocketmine\Player, string[12] x xx)

[04:59:58] [Server thread/CRITICAL]: #7 src/pocketmine/Player(2322): pocketmine\Server->dispatchCommand(object pocketmine\Player, string[12] x xx)


 

Make sure the world you're teleporting to is loaded.

 

When it is loaded it doesn't work (the error stops showing but the plugin doesn't work)

 

$world = $data['Spawn']['mundo'];
if ($this->getServer()->getLevelByName($world) == null){
$p->sendMessage("world load error");
}