Oh, okay!
I think I know the issue. The results shortcode alone is not enough: [wpdreams_ajaxsearchpro_results id=1 element="div"]
The same search also has to be on the page somewhere, otherwise it may not be rendered. If you place the search shortcode somewhere [wd_asp id=1] on the same page, the results should start appearing.
Elementor Pro is an option, but most themes nowdays have a builder to edit the search results archives – I would go with that to minimize overhead. I logged in to check and your theme does have a results archive customizer feature. That could solve all your issues, and you don’t have to use any plugins or the shortcode or anything.
