This should be fixed in the newest release of Hurry Curry. Sorry for the inconvenience.
I would also recommend making some fixes to the Bots, they tend to get stuck with clients and with each other, the simple chef bot gets confused when there is tomato soup being cooked
Edit: And don't get me started on the difficulty, even on 1 player map, the game is surprisingly hard, i don't know if the game is intended to be this hard or not, but even with one bot waiter, it's hard to get past 1 star
Edit 2: And the DishWasher Bot doesn't even do his job
Thanks for the feedback. @metamuffin actually spent the past few days fixing the bots upstream, and they should hopefully no longer get stuck. The dishwasher bot now also works correctly. We're planning to publish a release with all of these changes very soon.
Regarding the difficulty, we eventually want to add a campaign mode, where players start with easy maps (like Salad Store) and then maps get increasingly more difficult as they progress.