if you know how to fix this then drop me a DM
15zine/woocommerce/archive-product.php version 3.4.0 is out of date. The core version is 8.6.0,
- Go to WooCommerce > Status > System Status. Scroll to the end of the page where there is a list of templates overridden by your theme/child theme and a warning message that they need to be updated. In the example below, the templates
form-pay.phpandform-login.phpare outdated:
Save a backup of the outdated template.
Copy the default template from wp-content/plugins/woocommerce/templates/[path-to-the-template] and paste it in your theme folder found at wp-content/themes/[path-to-theme].
Open the template you pasted into the theme folder with a text editor, such as Sublime, Visual Code, BBEdit, Notepad++, and replicate any changes that you had to the previous template in your new, updated template file.

I sent you DM
Check that your theme is up to date. Install the Envato Market plugin https://www.envato.com/lp/market-plugin/, connect it to Envato, that way updates will flow to your site.