Responses
the officials translated that badly, read the bingsoo version for a better TL!
the joke is that Jigu accidentally says "the receipt you have ordered is ready" when he meant to say "the food you have ordered is ready" then the receipt comes out lol. (the punchline works better in korean because the sentence structure is reversed)

What’s so funny about the moment in the cafe in chapter 8? What am I missing?