private void Awake()
 {
     Instance = this;
     if (PPLayer == null || PPVolume == null || Cam == null)
     {
         Debug.LogError("At least one of the required attributes is null . Change it and retry . " +
                        "Won't initialize the game settings system .. ");
     }
     else
     {
         Debug.Log("No error occured. Will init ...");
         GameSettingsSystem.Init();
     }
 }