Alrighty, here is the issue that I have found.
- You click 'order' in any of the categories (armors, weapons, shields), this will cause that box to turn blue.
- Next you click on a piece of gear then cancel it which will return the box to green.
- Now you can 'buy' any piece of gear instead of ordering it. You can't actually get the item if it isn't currently stocked, you just get the "Oops, that item is not currently stocked." error message.
Using Chrome.