There's another thing that can get you, and that is answering the door to the office(yellow button). Sometimes Maddie and Nile will visit and you need to complete a prompt for them before you can get back to security guarding. If you're just getting [game over]at the nightclub and not a paper, its probably them.
Also, the sabatour is Sammy i believe. Cass is the bandit at the gacha/trader, and she's been turned off in latest build for being broken(insta-kills you)