Brian answers this above, but it's not an error, there just aren't any reviews for the search result. This is 8 months later, so you've probably already moved on, but I got the same thing. If you haven't tried this, add the "JSON Viewer" extension in Chrome and then it'll come up just like Brian has it and you can inspect the results of the query. In my case (Early Jan 2020) the results don't have a review. I'm assuming that as I go forward in the lesson, some of the apps that we'll have in the feed will have some available to display.