Is this script old o.0?

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class TetrisObject : MonoBehaviour {

 float lastFall = 0f;

 void Start () {
     
 }

 void Update () {

     if (Input.GetKeyDown (KeyCode.LeftArrow)) {
         transform.position += new Vector3 (-1, 0, 0);

         if (IsValidGridPosition ()) {
             UpdateMatrixGrid ();
         } else {
             transform.position += new Vector3 (1, 0, 0);
         }

     } else if (Input.GetKeyDown (KeyCode.RightArrow)) {
         transform.position += new Vector3 (1, 0, 0);

         if (IsValidGridPosition ()) {
             UpdateMatrixGrid ();
         } else {
             transform.position += new Vector3 (-1, 0, 0);
         }

     } else if (Input.GetKeyDown (KeyCode.UpArrow)) {
         transform.Rotate += new Vector3 (0, 0, -90);

         if (IsValidGridPosition ()) {
             UpdateMatrixGrid ();
         } else {
             transform.Rotate += new Vector3 (0, 0, 90);
         }
     } else if (Input.GetKeyDown (KeyCode.DownArrow) || Time.time - lastFall >= 1) {
         transform.position += new Vector3 (0, -1, 0);

         if (IsValidGridPosition ()) {
             UpdateMatrixGrid ();
         } else {
             transform.position += new Vector3 (0, 1, 0);
                 
             MatrixGrid.DeleteWholeRows ();
             FindObjectOfType<Spawner> ().SpawnRandom;
             enabled = false;
         }
         lastFall = Time.time;
     }
 }

 bool IsValidGridPosition() {
     foreach (Transform child in Transform) {
         Vector2 v = MatrixGrid.RoundVector (child.position);

         if (!MatrixGrid.IsInsideBorder (v))
             return false;

         if(!MatrixGrid.grid[(int)v.x, (int)v.y] != null && MatrixGrid.grid[(int)v.x, (int)v,y].parent != transform)


         } // this point is says TetrisObject.cs(67,3): error CS1525: Unexpected symbol `}'
     return true;

 }

 void UpdateMatrixGrid() {
     for (int y = 0; y < MatrixGrid.column; ++y) {
         for (int x = 0; x < MatrixGrid.row; ++x) {
             if(MatrixGrid.grid [x, y] != null) {
                 if (MatrixGrid.grid [x, y].parent == transform) {
                     MatrixGrid.grid [x, y] = null;
                 }
             }
         }
     }

     foreach (Transform child in transform) {
         Vector2 v = MatrixGrid.RoundVector(child.position);
         MatrixGrid.grid [(int)v.x, (int)x.y] = child;
     }
 }

} // TetrisObject