Factual error: Caroline says to Max, "You've had rabies once," implying that she was infected with rabies and recovered. Rabies, once you get infected, is lethal and untreatable. (00:00:10 - 00:10:15)
Suggested correction: Rabies is curable if you are infected, as long as you don't show symptoms. You can get treatment - the sooner, the better. Also, the further away the wound that infected you is from your brain, the longer time you have until symptoms show.
And Not-So-Sweet Charity - S2-E18
Continuity mistake: In this episode, Chef Nicolas visits the diner and greets Max as if they know each other, and even teases her about giving her a low grade for her flan. But this is just season 2, and Max doesn't go to pastry school until season 3. (03:05:00)
Suggested correction: This does not happen in the episode mentioned in this post. They joke about her low-grade flan in season 3, episode 18 - time stamp 03:03.