3D FlipBook - Hi. I have followed the instructions on installing 3D Flip Book, but when I create a new book, everything seems to work until

Hi. I have followed the instructions on installing 3D Flip Book, but when I create a new book, everything seems to work until I actually go to the page, and then I get a 404 error. My domain is westerncoloradoalliance.org, and the plugin is pointing to a permalink of “https://westerncoloradoalliance.org/3d-flip-book/legislative-scorecard-2019/” but all I get when I go there is a 404 message. I sure hope you can help ASAP.