Shooting problem Unity3D C#

Hello. We have a problem in shooting ball. It is possible to shoot 3 times during the game. However, there are cases when the ball is taken out of the calculation but does not shoot.

 if (!IsPointerOverUIObject() && Input.GetMouseButtonUp(0) && readyToshoot) // Shoot the ball
         {
             
             ball.GetComponent<Rigidbody>().AddForce(dir * ballForce, ForceMode.Impulse);
             StartCoroutine(BallSpawn());
             readyToshoot = false;;
         }

 IEnumerator BallSpawn()
     {
         BallsCounter.Ball--;
         yield return new WaitForSeconds(1.5f);
         other.RepositionalBall();
     }

 public void RepositionalBall() 
     {
         
         this.gameObject.tag = "Ball";
         this.gameObject.SetActive(false);
         transform.position = SpawnPos;
         rb.velocity = new Vector3 (0f, 0f, 0f);
         this.GetComponent<Animator>().enabled = true;    
         gameObject.SetActive(true);
         StartCoroutine(SetReadyToShoot());
     }
     IEnumerator SetReadyToShoot()
     {
         yield return new WaitForSecondsRealtime(1f);
         GameManager.instance.readyToshoot = true;
     
     }