Error Code: BANANA
This error indicates you don't have access to the activity you are attempting to launch. Typically, this error is triggered by attempting to access DLC you may not have purchased. If you believe you should not be seeing this error, please create a new topic on the #Help forums and let us know which error you received, what platform you're playing on, and what you were doing when it occurred.
Update: Players who own House of Wolves but not The Dark Below may see this error when attempting to play a House of Wolves Crucible playlist. This is due to a Dark Below map being selected, but not owned, which will then result in players being returned to orbit.