The Scunthorpe problem is when a computer program accidentally blocks innocent words because it thinks they are bad. It happens because the program doesn't understand some words, so it mistakes them for something bad. For example, if there is a computer program that blocks swear words, it may block the word "Scunthorpe", because it looks like it could be a bad word. But really, "Scunthorpe" is a town in England. So this kind of mistake is called the "Scunthorpe Problem".