Dunno if this is the case for anyone else, but on day 6 there's constantly a bug where, usually after a table's done with all courses, there are dirty dishes on that table and one of the characters is standing next to the table by one of the corners. I've tried interacting with them from all possible angles but nothing works, going to the cash register to take their payment also doesn't work... and then after a moment they say it's taking too long and leave. That way I can't meet the daily quota :,)
Well, maybe it'll work if I try again in the near future. Either way, so far this game's been fun and I'm excited to see how the story progresses.