Index was out of range - List of Token

Hi,

I have a problem that I can't resolve. More precisely I don't understand why "i" is out of range with an upper limit with turnNumber. Below are the two linked codes that cause the problem and the error in unity with the two lines causing the error. Thank you in advance for the help.

 public void TurnConstructor()
     {
         playerNextMove.Clear();
         foreach (Token token in selectedToken)
         {
             playerNextMove.Add(int.Parse(token.text.text));
         }
         foreach (GameObject token in playerTokens)
         {
             token.SetActive(false);
         }
         selectedToken.Clear();
 
         activeTurns.Clear();
         
         int turnNumber = enemyNextMove.Count;
 
         for (int i = 0; i < turnNumber; i++)
         {
             if (i < turnNumber - 1)
             {
                 activeTurns.Add(enemyNextMove[i]);
                 isEnemyTurn.Add(true);
                 activeTurns.Add(playerNextMove[i]);
                 
 
             }
             else
             {
                 activeTurns.Add(enemyNextMove[i]);
                 //break;
             }
         }
         
         StartCoroutine(WaitBeforeStart());
 
     }


 public void PlayTurn()
     {
         if (activeTurns.Count > 0)
         {
             if (enemyTurn)
             {
                 int moveValue = activeTurns[0];
                 StartCoroutine(MoveToNext(enemy, enemyIndex, moveValue));
                 activeTurns.RemoveAt(0);
             }
             else
             {
                 int moveValue = activeTurns[0];
                 StartCoroutine(MoveToNext(player, playerIndex, moveValue));
                 activeTurns.RemoveAt(0);
             }
         }
         else
         {
             Debug.Log("all turns done");
         }
 
     }