(C#) Stack overflow caused by unknown operation

Hi. My editor keeps crashing because of a stack overflow. The error message is as follows:

I can't seem to find an infinite loop in my code and i'm stumped as I can't find an answer anywhere. The error message can not be expanded as far as I know. When double clicking the messages two objects are highlighted in my hirarchy and these are the scripts asociated with them (ignore the dutch comments);

 using UnityEngine;
 using System.Collections;
 using UnityStandardAssets._2D;
 
 public class Weapon : MonoBehaviour
 {
 
     // De schade die het wapen toebrengt
     public int Damage;
 
     // Pak de Bullet emitter 
     public GameObject Bullet_Emitter;
 
     // Pak de bullet uit 
     public GameObject Bullet;
 
     // Snelheid van de kogel
     public float Bullet_Forward_Force;
 
     // Hoeveelheid kogels
     private int bulletAmount;
 
     // Positie om te schieten
     private Vector3 positionLeft;
 
     // Positie om te schieten
     private Vector3 positionRight;
 
     // Positie bepaling
     private bool facingLeft = false;
 
     // Enemy ??
     private Enemy enemy = new Enemy();
 
     // Methode om te het aantal kogels op het scherm te verminderen met 1 wanneer er een kogel vernietigd wordt
     void bulletAmountMinusOne()
     {
         bulletAmount -= 1;
     }
 
     //De kogel vernietigen wanneer deze een enemy raakt en schade toebrengen
 
     //void OnTriggerEnter(Collider other)
     //{
     //    if (other.gameObject.tag == "Enemy")
     //        Destroy(other.gameObject);
     //    Debug.Log("Hit");
     //}
 
     //void OnCollision2DEnter(Collision col)
     //{
     //    if (col.gameObject.tag == "Enemy")
     //    {
     //        Destroy(this.transform);
     //        enemy.DamageEnemy(Damage);
     //    }
     //}
 
     // Use this for initialization
     void Start()
     {
 
     }
 
     // Update is called once per frame
     void Update()
     {
         if (Input.GetKey(KeyCode.LeftArrow)) // Hier checken voor input is niet ideaal maar wist niet hoe anders
         {
             facingLeft = true;
         }
         if (Input.GetKey(KeyCode.RightArrow))
         {
             facingLeft = false;
         }
 
         if (Input.GetKeyDown("p") && bulletAmount < 3)
         {
             shoot();
         }
         
     }
 
 
         void shoot()
         {
             // Richting om in te schieten
             positionLeft = new Vector3(-10, 0);
             positionRight = new Vector3(10, 0);
 
             // Schieten
           
                 // Bullet aanmaken
                 GameObject Temporary_Bullet_Handler;
                 Temporary_Bullet_Handler = Instantiate(Bullet, Bullet_Emitter.transform.position, Bullet_Emitter.transform.rotation) as GameObject;
                 bulletAmount += 1; // Moet anders
 
                 // Haal de rigidbody van de geinstantieerde kogel op en en bestuur deze
                 Rigidbody temporary_RigidBody;
                 temporary_RigidBody = Temporary_Bullet_Handler.GetComponent<Rigidbody>();
 
                 if (facingLeft == true)
                 {
                     // De snelheid van de kogel toevoegen aan de sneldheid van de rigidbody
                     temporary_RigidBody.AddForce(positionLeft * Bullet_Forward_Force);
                 }
                 else
                 {
                     temporary_RigidBody.AddForce(positionRight * Bullet_Forward_Force);
                 }
                 // De kogel vernietigen
                 Invoke("bulletAmountMinusOne", 2);
                 Destroy(Temporary_Bullet_Handler, 2.0f);
             }
         }

And

 using UnityEngine;
 using System.Collections;
 
 public class Enemy : MonoBehaviour {
 
     Weapon weapon = new Weapon();
 
     [System.Serializable]
     public class EnemyStats
     {
         public int Health = 100;
         public int DamageOnHit = 20; // Variabel?
     }
 
     public EnemyStats enemyStats = new EnemyStats();
     public Player player = new Player();
 
     public void DamageEnemy(int damage)
     {
         enemyStats.Health -= damage;
         if (enemyStats.Health <= 0)
         {
             GameMaster.KillEnemy(this);
         }
     }
 
     //void OnCollision2DEnter(Collider2D col)
     //{
     //    // Schade toebrengen aan de speler wanneer hij de vijand aanraakt
     //    if (col.gameObject.tag == "Player")
     //    {
     //        player.DamagePlayer(enemyStats.DamageOnHit);
     //    }
 
     //    if (col.gameObject.tag == "Bullet")
     //    {
     //        DamageEnemy(weapon.Damage);
     //        Destroy(col.gameObject);
     //        Debug.Log("We hit");
     //    }
 
     //}
 
     //void OnTriggerEnter2D(Collider2D other)
     //{
     //    Debug.Log("Hit" + other.GetComponent<Collider>().name + "For");
     //    Destroy(other.gameObject);
     //}
 
 }

It seems no matter what I comment out the overflow keeps happening and crashing my editor. So my question is is there a fatal error in the code, or is there a possibility of the set up in the editor causing the overflow? If additional information is needed I'll provide it. Thanks in advance.