frank18:
There are 5 or more instances of external http:// calls on your main page. They need to be changed to https://
Examples are your social media icons in the footer. You need to fix that in Admin > Tools > Flexible Footer menu. Once you have done that, check for further errors.
BTW, those links are still pointing to the template author's pages.
Good suggestion/advice, but this would have nothing to do with the error message or the error being reported.
The issues you are pointing out would be reported as 'insecure content' (which isn't something I'm seeing on the OP's site. In fact all the links appear to be secure)
The Error message:
"You do not have SSL enabled. File contents you view from this page will not be encrypted and could present a security risk"
returns just two results from a Google search - One being this thread - The other being to sourceforge
http://sourceforge.net/p/zencart-german/svn/1024/ where it is found in the file
/admin/includes/languages/english/display_logs.php
So this implies the OP has installed this module
https://www.zen-cart.com/downloads.php?do=file&id=1583, and it is while using this admin tool where the "
You do not have SSL enabled". is being displayed.
There may be other places in the admin that could display similar text (such as DrBytes MySQL backup module), but the important thing to note is that this error message has nothing to do with any web browser reporting of SSL issues, and technically it isn't an SSL issue as such.
It is a check performed and reported by ZenCart itself, with no other external factors.
I'd even go as far to say that this warning can be ignored as only the admin will ever see it.
Cheers
RodG