Remove course author name

I’ve followed the directions here for removing the course author from my course, but it’s not working. I’ve added via lifterlms-customizations.php.

I want to remove the date & name & category (“In Teacher Training”) from the top of the page, and the author’s name (“Artilce By…”) and icon from the bottom.

Thank you for any help.
Don Russell

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