Not Working:Custom Class Phaser.Physics.Matter.Sprite

Phaser 3
1

Hi, I get the error: undefined is not an object (evaluating ‘scene.matter.world’) when I’m trying to make a custom Matter sprite in Es6.

I don’t know why it’s happening, can someone help me?

File 1

class Sprite extends Phaser.Physics.Matter.Sprite {
  constructor(scene, x, y, texture) {
    super(scene.matter.world, x, y, texture);
    scene.add.existing(this)

  }
  preUpdate(time, delta) {
    super.preUpdate(time, delta);
  }
}

File 2

this.sprite = new Sprite({
      scene: this,
      x: 10, 
      y: 10,
      texture: 'my-texture-key'
    });

Also my Matter config is correctly set!

2 
this.sprite = new Sprite(this, x, y, 'my-texture-key');