Hi,
I am not seeing the search shortcode on the /advanced-search page unfortunately, that is a different search: https://i.imgur.com/WMaEbiY.png
Make sure to place the plugin search shortcode there. It should look like this:
[wpdreams_ajaxsearchpro id=1]
or this:
[wd_asp id=1]
If the filters are not visible, check if the visibility and their position is set correctly.