Phaser Game Dev Capstone- Why doesn't this tween work?

[py1789499697]

I’m working on the Capstone Project for the Phaser module:
[https://www.codecademy.com/paths/create-video-games-with-phaser/tracks/game-dev-learn-phaser-visual-effects-and-capstone/modules/game-dev-project-capstone/projects/fastfoodie]

On step 13, it tells me to make a tween to move the customers. Everything has worked as expected up to this point, but the tween never loads. Here is what I have. Am I doing something wrong?

update() {
    if (gameState.readyForNextOrder) {
      gameState.readyForNextOrder = false;
      gameState.customerIsReady = false;
    gameState.currentCustomer = gameState.customers.children.entries[gameState.customersServedCount];
   this.tweens.add({
      targets: gameState.currentCustomer,
      x: gameState.player.x,
      ease: 'Power2',
      duration: 1000,
      delay: 100,
      angle: 90,
    });
  }
  }