Why arent the cards being displayed????

Im trying to build a deck builder, but when iplace the card, the textures arent bein draw. anyone understand why??

            void DrawDeckBuilder(){

     // Open scroll GUI
     scrollPosition1 = GUI.BeginScrollView (VisibleRect1, scrollPosition1, InvisibleRect1);
     for (int i = 0; i < DeckSize; i++) {
         Rect cardSlotRect = new Rect (i * 0.21f * w, 0, w * 0.2f, h * 0.4f);
         // Checks if there is a card to show his texture
         if (deck [i].cardName != "") {
             GUI.Box (cardSlotRect, deck [i].cardTexture);
         } else {
             GUI.Box (cardSlotRect, "Empty");
         }    
         //// Placing Card from Deck
         if (Input.GetMouseButtonUp (0) && draggingCard && cardSlotRect.Contains (Event.current.mousePosition)) {
             PlaceCard (deck, draggedCard);
             Debug.Log ("Placing card");
         }
     }
     GUI.EndScrollView ();
 }



 void PlaceCard(List<Card> ListToPlace, Card CardToPlace){
     ListToPlace.Add (CardToPlace);
     draggedCard = null;
     draggingCard = false;
 }