posts 'Next Page'

I am able to use the shortcode to insert posts. However, I don’t see the buttons ‘Next Page’, or ‘1’ ‘2’. Am I missing something? I changed themes so that is not the issue.

Here is my test website (I use this domain to test plugins.):
https://theme02.salcriscione.com/music-posts-page/

https://www.ads-software.com/plugins/shortcodes-ultimate/