Problems with character going up on a platform(elevator)

Hi there! I'm new in Unity,i am trying to do a simple game first so i am using some of the tornado twins tutorial to do my game. The Problem i am having its basically this,i want my character to go up to a 2nd floor on a moving platform, but he just step on the platform and go right trough it, sometimes he last a sec or randoms times on it but stills falls.

I'll post both codes here, if you know a better way of doing the actions on my code i will be really thankful.

Character(its a sphere): var speed = 3.0; var rotateSpeed = 3.0; var jumpSpeed = 10.0; private var moveDirection : Vector3 = Vector3.up; var gravity = 8;

function FixedUpdate () { var controller : CharacterController = GetComponent(CharacterController);

 //Move forward/backward
 var forward = transform.TransformDirection(Vector3.forward);
 var curSpeed = speed * Input.GetAxis("Vertical");
  //Rotate around y - axis
  //transform.Rotate(0, Input.GetAxis("Horizontal")* rotateSpeed,0);
  
  
    
    
    //When character its toching the ground and the jump button its On
    if (controller.isGrounded)
        if (Input.GetButton("Jump"))
     {
         moveDirection.y += jumpSpeed;

     }
         //Move forward/backward
         controller.SimpleMove(forward * curSpeed);
         //Jump Action
         controller.Move(moveDirection * Time.deltaTime);
         moveDirection.y -= gravity * Time.deltaTime;

}

@script RequireComponent(CharacterController)

The platform, im using a code that he follows an invisible cube above him:

static var Waypoint : boolean = true; var pointB : Transform; private var pointA : Vector3; var speed = 1.0;

function Start () { if(Waypoint == true) { pointA = transform.position; while (true) { var i = Mathf.PingPong(Time.time * speed, 1); transform.position = Vector3.Lerp(pointA, pointB.position, i); yield; } } }

Thanks in advance