Site Icons Not Showing In Some Cases

Hello,

I’ve installed a theme that utilizes a wide variety of icons :

<lilinear icons>
• font awesome
• ion icons
• simple line icons etc. etc.

We are just about to soft launch and I am just now realizing that the icons are not showing when you use the www (who uses that these days???). For example :

ThisIsMySite.com = icons show fine
https://www.ThisIsMySite.com = icons NOT showing at all

Would anyone happen to know how I can fix this issue. It is not a super priority but it is a bug fix I would like to implement ASAP.

Thanks in advanced!