Hello,
We Really Apologize about the Inconveniences! Since you intend to use the One Page Layout only, for your Website and we assume that you will be adding the HTML File to the Root Folder, you will need to change the CSS/JS Linking in the One Page HTML File you are planning to use and remove the ../ Link prefix and change other Links to one-page/ to make sure that the File Linkings are pointing to the Correct File Locations. Also, make sure to upload the one-page Folder to your Web Server as well since it contains the CSS File for the One Page Styling.
Also make sure that you have already add the following Folders/Files:
css/ Folder
images/ Folder (However, you can delete the Images inside this Folder according to your Preference, but don't delete the images/icons/ Folder)
include/ Folder (However, you can delete the rs-plugin/ Folder)
js/ Folder
one-page/onepage.css File
style.css File
This will definitely work fine. Thanks for your Patience.
Meanwhile, do let us know if we can help you with anything else or if you find any further issues with Canvas.