Unity keeps crashing and I dont know why

So I'm fairly new to using Unity so I don't know everything about it. The problem is that Unity keeps crashing for no reason and I wanted to ask if some of u can get behind my promblem. This is the part of my Code thats causing the Problem (I think...) Its very long and probably really bad but like I said I can't really pinpoint the reason unity keeps crashing. (The Code is for an Enemy in a Turn Based Combat (kinda like DnD) and it normally keeps chrashing on the Turn right brfore the Enemy gets close enough to the player to Attack)

void Update() { if (Leben <= 0) Die();

     if (Turn == true)
     {
         if (CheckPlayerProx() == 1)
             closeProx= true;
         else
             closeProx= false;

         if CheckClose() == 1)
             close= true;
         else
             close= false;


     }
 }

 void CheckMove()
 {
     rechts = 0;
     links = 0;
     oben = 0;
     unten = 0;

     while (Movement > 0 && closeVal== false)
     {
         if (XGegen - 1 > XWert)
         {
             Movement--;
             XWert++;
             rechts++;
         }

         if (XGegen + 1 < XWert)
         {
             Movement--;
             XWert--;
             links++;
         }

         if (YGegen - 1 > YWert)
         {
             Movement--;
             YWert++;
             oben++;
         }

         if (YGegen + 1 < YWert)
         {
             Movement--;
             YWert--;
             unten++;
         }


         if (XWert == XGegen + 1 && YWert == YGegen - 1)
         {
             int ur = Mathf.RoundToInt(Random.Range(1f, 2f));
             if (ur == 1)
             {
                 Movement--;
                 YWert++;
                 oben++;
             }
             else
             {
                 Movement--;
                 XWert--;
                 links++;
             }
         }
         else
         {
             if (XWert == XGegen - 1 && YWert == YGegen - 1)
             {
                 int ul = Mathf.RoundToInt(Random.Range(1f, 2f));
                 if (ul == 1)
                 {
                     Movement--;
                     YWert++;
                     oben++;
                 }
                 else
                 {
                     Movement--;
                     XWert++;
                     rechts++;
                 }
             }
             else
             {
                 if (XWert == XGegen + 1 && YWert == YGegen + 1)
                 {
                     int or = Mathf.RoundToInt(Random.Range(1f, 2f));
                     if (or == 1)
                     {
                         Movement--;
                         YWert--;
                         unten++;
                     }
                     else
                     {
                         Movement--;
                         XWert--;
                         links++;
                     }
                 }
                 else
                 {
                     if (XWert == XGegen - 1 && YWert == YGegen + 1)
                     {
                         int ol = Mathf.RoundToInt(Random.Range(1f, 2f));
                         if (ol == 1)
                         {
                             Movement--;
                             YWert--;
                             unten++;
                         }
                         else
                         {
                             Movement--;
                             XWert++;
                             rechts++;
                         }
                     }
                 }
             }
         }
     }

     Moving();
 }

 void Moving()
 {
     if (rechts > 0)
         StartCoroutine(MoveRight());
     else
         if (links > 0)
             StartCoroutine(MoveLeft());
         else
             if (oben > 0)
                 StartCoroutine(MoveUp());
             else
                 if (unten > 0)
                     StartCoroutine(MoveDown());
                 else
                     Moving();
 }
 IEnumerator MoveRight()
 {
     rechts--;
     Geh--;
     yield return new WaitForSeconds(0.3f);
     transform.Translate(50f, 0f, 0f);
     X++;
     if (Geh > 0 && close== false)
         Moving();
     else
         CheckAngriff();
 }

 IEnumerator MoveLeft()
 {
     links--;
     Geh--;
     yield return new WaitForSeconds(0.3f);
     transform.Translate(-50f, 0f, 0f);
     X--;
     if (Geh > 0 && close== false)
         Moving();
     else
         CheckAngriff();
 }

 IEnumerator MoveUp()
 {
     oben--;
     Geh--;
     yield return new WaitForSeconds(0.3f);
     transform.Translate(0f, 50f, 0f);
     Y++;
     if (Geh > 0 && close== false)
         Moving();
     else
        CheckAngriff();
 }

 IEnumerator MoveDown()
 {
     unten--;
     Geh--;
     yield return new WaitForSeconds(0.3f);
     transform.Translate(0f, -50f, 0f);
     Y--;
     if (Geh > 0 && close== false)
         Moving();
     else
         CheckAngriff();
 }