I have been following along with the courses, and entering the dates showed in the class video. When it wouldn't work for me, I would download the current video, and try again. In lesson 11 and 12, I was frustrated, and almost gave up! It finally came to me, that the dates in the lessons are far older than the criteria asks for in the query, since I am watching these lessons in 2021, so >=Date()-90  wouldn't show any orders when I run the query. Maybe something should be said in the intro or something about the date you should enter, instead of the date being shown in the video.