Andruthir

Hi, I just started playing Pathfinder Adventures and seem to be having an issue with the stash on my first party. I played through the tutorial and then started a new party with three characters on the RotG campaign. Previously I had placed 10 items in my stash before I began. After failing the first attempt at the quest when it takes me to my party inventory screen, I still have the items in my stash. My characters have all accumulated new items in their decks during the quest, but I can't get rid of them because there's no room in the stash. Can I remove cards from the stash somehow? I then tried going and clearing the cache data for the game and when I returned there were only 5 cards in the stash, but still not enough room to place accumulated cards in the stash. Therefor I can't continue playing with the party as far as I can tell. Can anyone help or point me towards another existing thread? The card system in this game seems rather unintuitive to me. Thanks for any tips!