Nodeview Fracturing problems

hi guys, i tried to do a simple fracturing as in this toutorial https://www.youtube.com/watch?v=HIsiL042PEk&t=546s but the circle that i draw appears oval in the camera view (8:35min in the video) i did the same steps as in the toutorial and and the propertys of the nodes seam to be the same as in the video.
furthermore the circle isn’t fracturing like in 9:06min of the video. it is not even moving like in 10:10min =(

nothing works =(

can somebody help me?!

Contact support and be ready to provide your zipped project folder.