At the frontend, there is no icon defined, neither called from the CSS as of font to by displayed. I am afriad something is missing if you’re editting this at the backend via WooCommerce or the theme. I’d suggest finding a developer or contact support at WooCommerce, WordPress or theme developer.
If experienced enough, adding some piece of CSS code into the theme for the class with :after, you’d be able to modify and insert the icon as background-image or via content.
I am afraid it’s a theme issue, not Cloudflare.
You could try to temporarly Pause Cloudflare and see if the icon appears or not.