So there's a few problems with the game. This is an amazing game by the way. I hope you keep developing it. Its also better than its predecessor in many ways.
However, there are a few bugs; one of them is... if you don't have enough rooms for your servants you can't go forward. You are stuck. Now it should penalize you for not having enough rooms if you have 7 people and only room for 6. But it shouldn't be set to making you unable to play the game anymore. And that's the problem. If you can't finish the day or go forward your only choice is to stop playing. Because the reason you have too many people is you just rescued some cool exotic slave and you don't want to give it up. But you can't give up your already tamed workers also because even if they are plain you just spent 10+ turns working to get them to be able to work for you.
So you need a middle ground option here. Maybe you can let the player still finish the day but the slave with no bunk takes a faction or morale hit or something would work better.