Lauren, does your project work with local preview?

If you go to step 5 and export website to disk (choose a suitable folder), then browse to the folder and double click on bow.html does it exist/open?

If all is well locally, then you should do a full upload (not just new and changed)

On the face of it I suspect bow.html is not on your hosting, you might check step 3, select bow and check properties. Have you perhaps used a different name for the page??