"Bizarre Halloween Program" quest error
We are aware of an issue currently surrounding the "Bizarre Halloween Program" quest, in which attempting to progress the quest on a separate character after already undertaking the quest will result in the game crashing.
This can be solved by simply restarting your client. While this is an unusual fix, we don't expect this to be a major blocker, and as such at this time there are no plans to implement a hotfix for this issue. We thank you for your understanding and cooperation!