Wrong headers on blog pages

I am using the lyrical theme and the default blog page that goes with it. When I click on the author link it takes me to the “www.sitename.com/author/authorsname/” page. This page does not have the same header that I am using. When I click on the comment link it takes me to the https://www.sitename.com/ hello-world/#comments/ page. This page also does not have the same header that I am using. Neither of the pages is listed when I view all pages. How can I fix it so that I can access these pages and have the right header appear?

Thanks for your help.