Hello,

I saw the screenshot you attached.

The icons seem to be added under the after add to cart text area. Please edit the HTML block used in the after add to cart text area under Theme Settings >> Single Product >> Add to cart options.

Screenshot for Clarification: https://gyazo.com/01d28767eaea82c3b2c07548db1867aa

If you are still unable then provide with the admin panel login details of the website.

Regards.
Xtemos Studios