Thank you @sethclydesdale, creating the .nojekyll file effectively worked. The website has updated and was built successfully. GitHub did send me an email that I would like understand:
The page build completed successfully, but returned the following warning for the `master` branch:
It looks like you're using GitHub Pages to distribute binary files. We strongly suggest that you use releases to ship projects on GitHub. Releases are GitHub's way of packaging and providing software to your users. You can think of it as a replacement to using downloads to provide software. We found the following file(s) which may be a good candidate for releases: materialize-admin-template/node_modules/gifsicle/vendor/gifsicle.exe, materialize-admin-template/node_modules/jpegtran-bin/vendor/jpegtran.exe, materialize-admin-template/node_modules/node-notifier/vendor/notifu/notifu.exe, materialize-admin-template/node_modules/node-notifier/vendor/notifu/notifu64.exe, materialize-admin-template/node_modules/node-notifier/vendor/snoreToast/SnoreToast.exe, and materialize-admin-template/node_modules/optipng-bin/vendor/optipng.exe. For more information, see https://help.github.com/en/articles/about-releases.
For information on troubleshooting Jekyll see:
If you have any questions you can contact us by replying to this email.
What does this mean? Is it telling me to switch to a different program?