Code inside Couroutine Randomly Stops Working

I'm making a natural selection simulator, creatures go out and collect pieces of food for a set amount of time before coming back home. if they obtain two pieces of food they replicate, 1 they survive, 0 they die. every "day"(50 seconds) there's a small chance one mutates to give a slightly higher speed or energy etc.

Upon letting the simulation run for more generations i noticed it just stops working halfway through, some code just stops getting executed. My unity knowledge is basic so maybe im doing something wrong but currently i have a couroutine set to run every second, inside this couroutine i run a method called Logic() which contains a bunch of if statements that check conditions based on the current time in the simulation.

 //couroutine for game logic (checks logic every second)
     IEnumerator Couroutine2()
     {
         testCoroutine = true;
       
         yield return new WaitForSeconds(1);
         Logic();
         Debug.Log("COURTINE WORKING");
         testCoroutine = false;
     }

This couroutine is called in Update()

 void Update()
     {
      
         if(!testCoroutine)
         {
             StartCoroutine(Couroutine2());
         }
 }

And this is the Logic() method

  void Logic()
     {
         //references to other scripts for time/spawning of food etc
         GameObject Manage = GameObject.Find("_Manager");
         TimerScript timerscript = Manage.GetComponent<TimerScript>();
         SpawnBlob spawnfood = Manage.GetComponent<SpawnBlob>();
         float time = timerscript.Timer;
 
        // float energyremaining = (energy - distanceTravelled);
         
         //try for mutation at end of day 
         //and reset values
         if (time == 50)
         {
             Debug.Log("this is working");
             distanceTravelled = 0;
             foodcount = 0;
             outofenergy = false;
             fooddetected = false;
             Mutate();
             //Debug.Log(foodcount);
 
         }
 
         //two pieces of food = reproduction
         if (time == 49 && foodcount >= 2)
         {
             Instantiate(Blob, new Vector3(15, 1, 0), transform.rotation);
             //Debug.Log("i have reproduced");
             foodcount = 0;
         }
 
 
         //if creature still has time and detects food go for food
         if (time < 40 && fooddetected == true && outofenergy == false)
         {
 
             navMeshAgent.SetDestination(foodposition);
             fooddetected = false;
             
         }
 
         //no food = death
         if (time == 48 && foodcount == 0)
         {
             Destroy(Blob);
             //Debug.Log("I have died");
             foodcount = 0;
         }
         
         
 
         // ran out of energy
         if(energy - distanceTravelled <=30)
         {
             outofenergy = true;
         }
 
 
 
         //go home before time up
         if (time >= 40)
         {
             navMeshAgent.SetDestination(goHome());
             //Debug.Log("Home time");
         }
 
         //destroy remaining food and spawn new ones
         if (time == 49)
         {
             GameObject[] allObjects = GameObject.FindGameObjectsWithTag("Food");
                   foreach(GameObject obj in allObjects)
                     {
                          Destroy(obj);
                     }
             spawnfood.SpawnFood();
         }
         /*
         if(time == 30)
         {
             addtest(navMeshAgent.speed, energy);
         }*/
         if (outofenergy == true)
         {
             navMeshAgent.SetDestination(goHome());
         }
     }

So the code inside Logic is called normally for the first how many iterations and then just stops randomly working and the whole thing breaks down. Why would this be? is it something to do with couroutines that i dont understand?