product-category strip leads to 404

Hello,

Thanks for contacting us and sorry for the inconvenience caused.

When that situation happened did you try saving the permalink structure once under WordPress Dashboard > Permalinks?

That situation usually happens when the permalinks need to be flushed on the website.

To get around the issue you can introduce a function to update the permalinks automatically every hour and that should help clear the issue:

add_action('my_hourly_event', 'do_this_hourly');
 
function my_activation() {
    if ( !wp_next_scheduled( 'my_hourly_event' ) ) {
        wp_schedule_event(time(), 'hourly', 'my_hourly_event');
    }
}
 
add_action('wp', 'my_activation');
 
function do_this_hourly() {
    global $wp_rewrite;
    $wp_rewrite->flush_rules();
}

Here is how to add a filter to your site: https://rankmath.com/kb/wordpress-hooks-actions-filters/

Hope this helps clarify the situation and resolve the issue on the website.

Don’t hesitate to get in touch if you have any other questions.