Bug in the program

There is a bug in this program where it displays the reading time of the post on all post titles, including related posts in the footer below. If it could only display the reading time for that article title, that would be awesome! This could be done by adding a function in the code to only display the reading time on the first title on the post page instead of all of them. Thank you for your time!

The page I need help with: [log in to see the link]