Hello,

First of all thanks for choosing our Theme, we are glad to be you in the WoodMart WordPress family :-).

You need to use separate headers for each single product page and shop page and set the icons for each element from Header Builder.

To add a separate header for the shop page edit the shop page and set the custom header.

Screenshot for Clarification: https://ibb.co/tpGYhgd

For the product page you can set the header from Theme Settings >> Product Page.

Screenshot for Clarification: https://ibb.co/sFqwH16

If you want to ask anything else then provide with some relevant screenshot of the specific area to check it myself and help you out accordingly.

Best Regards.