Referencing another script error/problem

I am trying to reference another script for my game Pong 2D this is the Ball script for the game

At the line "TriggerEvent = RightSideScene.GetComponent(TriggerEvent)();" I get the error "Argument1: Can not convert 'RightSideScene' to 'System.Type'

At the line "RightSideScene.TriggerEvent(sceneManager);" I get the error "'GameObject' does not contain a definition for 'TriggerEvent' accepting a first argument of type 'GameObject' could be found (are you missing a directive or a assembly reference"

 public GameObject RightSideScene;
 RightSideScene TriggerEvent;
 public int sceneManager;
 public float speed = 30;

 void Start()
 {
     TriggerEvent = RightSideScene.GetComponent(TriggerEvent)();
     // Initial Velocity
     GetComponent<Rigidbody2D>().velocity = Vector2.right * speed;
 }

 private void TimeScale()
 {
     throw new NotImplementedException();
 }

 float hitFactor(Vector2 ballPos, Vector2 racketPos,
                 float racketHeight)
 {
     // ascii art:
     // ||  1 <- at the top of the racket
     // ||
     // ||  0 <- at the middle of the racket
     // ||
     // || -1 <- at the bottom of the racket
     return (ballPos.y - racketPos.y) / racketHeight;
 }

 void OnCollisionEnter2D(Collision2D col)
 {
     // Note: 'col' holds the collision information. If the
     // Ball collided with a racket, then:
     //   col.gameObject is the racket
     //   col.transform.position is the racket's position
     //   col.collider is the racket's collider

     // Hit the left Racket?
     if (col.gameObject.name == "RacketLeft")
     {
         // Calculate hit Factor
         float y = hitFactor(transform.position,
                             col.transform.position,
                             col.collider.bounds.size.y);

         // Calculate direction, make length=1 via .normalized
         Vector2 dir = new Vector2(1, y).normalized;

         // Set Velocity with dir * speed
         GetComponent<Rigidbody2D>().velocity = dir * speed;
     }

     // Hit the right Racket?
     if (col.gameObject.name == "RacketRight")
     {
         // Calculate hit Factor
         float y = hitFactor(transform.position,
                             col.transform.position,
                             col.collider.bounds.size.y);

         // Calculate direction, make length=1 via .normalized
         Vector2 dir = new Vector2(-1, y).normalized;

         // Set Velocity with dir * speed
         GetComponent<Rigidbody2D>().velocity = dir * speed;
     }
 }

     public void Trigger(Collider2D other)
     {
         if (other.tag == "WallLeft")
         {

             RightSideScene.TriggerEvent(sceneManager);
             {

             }
         }
     }
 }

This is the script for RightSideScene

For Your Information, I get no errors what so ever

 public bool startedLoad;

 public void TriggerEvent (Collider2D other)
 {
     if (other.gameObject.tag == "Ball")
     {
         SceneManager.LoadScene("RightSide Scene");
         startedLoad = true;
     }
 }

}

So what I am trying to do is when the 'Ball' hits the 'WallLeft' (I did do a type for the Loading of the Scene ;)) it loads the scene RightSideScene (aka the LeftSideScene, typos for the win)