You shouldn't be able to do quest guild quests before the mansion main quest. Did you bring a save from other build to this build?
Viewing post in Small On Top 0.70 patreon build! comments
that's most likely the reason it doesn't work. 0.18 was made from a build I made a year ago. A lot has changed then in the game that might make it unplayable. I recommend using one of the pre-made saves from 0.70 and basing a new save on that. You can change your name in the Gloomy Forest, in the ID machine that allowed you to enter the club the first time.