Is the place to change the template so that this error stops - in template/layout.css? or style1.css?
Do I make it //images/headers instead of ../images/headers ?
index.php:1 Mixed Content: The page at 'https://www.aldonhometutoring.com/index.php?lang=en' was loaded over HTTPS, but requested an insecure image 'http://www.aldonhometutoring.com/images/headers/Aldon_home.png'. This content should also be served over HTTPS.
Are you sure your are posting in product assigned forum?
What is your CMS version?
: Joomla 3.x
Link to installation
Have you edited any files? If yes tell us which ones.
Is this personal or client website?