publish_date shortcode not working

Hi,

we are trying to use the shortcode [publish_date] within the link-template-default.php, but this shortcode is not working. But [update_date] is working without problems ..

We are using these shortcodes:

https://www.wpdownloadmanager.com/doc/short-codes/wpdm_all_packages-list-all-downloads-in-tabular-format-in-a-page/