Problem: Items added to cart disappear when navigating to another page Verify WordPress sessions are enabled (check wp-config.php) Check theme doesn't have issues with session handling Verify theme calls wp_footer() to ensure session writing occurs Check for PHP errors in WordPress debug log Try disabling caching plugins temporarily to test Problem: Cart Page selected but shortcode not displaying Verify [shopping-cart] shortcode is actually in page content (edit page to confirm) Check that page is Published (not Draft) Verify cart page ID is correctly saved in settings Clear any caching plugins that may be caching empty page Check for JavaScript errors in browser console Problem: "Require User Registration" enabled but registration not showing Verify "Require User Registration" checkbox