I usually pick items at night to be ready in the morning. Today when I got on the game, all my items are ready but I'm unable to place anything. All my racks are empty and nothing highlights and no arrows show above racks. I also can't place gifted items. I'm level 15 and this is the first time I think I've had this issue. My hearts were down towards the lower 20s by the time I got done playing around. Please advise. Thank you!