New to Jekyll. Links are broken on my Jekyll GitHub site

I have used Jekyll to generate my personal github website.

Here’s the source:

The live demo is at:

The problem I am having is that although index.html works just fine. author/Sharon/index.html is not found. The same applies for tags. They cause 404.html to be displayed. What could be the problem?

I think it is because the template you are using is using plugins that are not supported by GH hosting.

In your repo there are some notes about this here:

Thank you @rdyar.

At first I did not understand what is meant by using plugins that are not supported by GH Hosting.
But I now I kinda do.

What I did was generate my site on my local server. Then push only the contents inside the /_site/ folder to the remote server

Now my blog works as advertised…