Turn Order and BattleManager

public class TurnOrderScript : MonoBehaviour
{

//THIS FUNCTION WAS ADDED/////////////////////////////////////////////
    public void GetNext() {

        var temp = turnOrder[0];
        turnOrder.Remove(temp);
        turnOrder.Add(temp);
        Debug.Log(turnOrder[0].name);
    }
///////////////////////////////////////////////////////////////////////

}
//THIS CLASS WAS REWRITTEN//////////////////////////////
public class BattleManager : MonoBehaviour
{
    public void TestEndTurn(int turnOrder)
    {
        TurnOrderScript _turnOrderScript = TurnOrderScript.Instance;
        if (turnOrder == 0)
        {
            Debug.Log("Successful");
            _turnOrderScript.GetNext();
        }
        else if (turnOrder == 1)
        {
            Debug.Log("Not Found!");
            turnOrder = 0;
        }
    }
}