I had recently purchased the Forsaken annual pass DLC since it was on sale in the xbox live marketplace. Once installed I receive the error stating that the Forsaken Annual pass is required and gives me the option to purchase it through the game. I have tried to uninstalling the game, wiping the cache of the xbox, and reinstalling the game. I still receive the same error. I also tried installing the game by itself then all of my DLC but still have no luck. To make matters worse the error window constantly pops up after hitting cancel (not re-purchasing) it has rendered the game unplayable.
This happens when you buy Forsaken: Annual Pass without owning Forsaken. The annual pass is an addon to the Forsaken expansion, without it you will get that error. Your best bet is to contact the market place support and see about getting a refund and buying the [url=https://www.bungie.net/7/en/Destiny/Buy/Forsaken]The Forsaken Complete Collection[/url] that will include both the Forsaken expansion and the Annual pass.