design/themes/abt__youpitheme/templates/views/products/components/product_features_short_list.tpl
попробуйте поменять
<a href="{"categories.view?category_id=
$product.main_category&features_hash=
$feature.features_hash"|fn_url}">
на
<a href="{"product_features.view?variant_id=
$feature.variant_id"|fn_url}">