You might have to wait until you access the full game to fully check this, but according to the [url=https://support.us.playstation.com/app/answers/detail/a_id/5111/~/ps4%3A-error-codes]PSN support page[/url], you should. 1) Go to [Settings]>[PSN]>[Restore License]. This is essentially like hitting a reset button on your digital content. 2) Go to where you found the item in the store and try again. If the message repeats, you will most likely have to wait until launch and see if it is simply a code that unlocks the armoury rather than a strict download. Steps 2 and 3 on the site assume that the game is already downloaded and ready to play, which we are a few days away from. I'll update this page/message you again if I find any more helpful information.