Blog button in navigation bar does nothing

I am trying to build a personal website with beautiful-jekyll. Everything is fine except for my blog. The Blog button in the navigation bar does nothing: if I click it I’ll be redirected to the current page. My website is hosted on GitHub (here). Any help is really appreciated.

By default, beautiful-jekyll puts the blog on the home page, so the Blog navbar link points to the home page (it could be renamed “Home” in _config.yml).

If you want the blog located somewhere else (like /blog/), then there’s an FAQ on how to do that: