The template is in Spanish, because my Wordpress is in Spanish.
__The translation that appears when you select the icon “?” it’s confusing.
…
__I have created a payment package to publish (PHOTO 1)
__I have marked it in red. What exactly is its function?
__Entering “HivePress / Settings” (PHOTO 2)
__I have marked it in red. What exactly is its function?
Yes, your first screenshot seems to have 30 set for the Expiration Period so listings added via this package will be published for 30 days until they get expired. It seems that we have some inconsistency in Spanish translation for Paid Listings.