Hi
From what I can see, the changes I made last time you were helped have been removed. This may be because you updated the theme, which would over-write the code.
The ‘ugly’ results were because you were using a form with the Shortcode Display Results method. I have changed this now to As an Archive, to use your theme’s normal search.php template.
You have a main theme (ClassiPress) and a child theme (ClassiPost) I think?
The changes needed to the ClassiPost child theme I detailed here for you:
https://support.searchandfilter.com/forums/topic/ugly-design/page/2/#post-90750
As the form ID is now different, that code needs to be changed to use form ID #3726 and not 3737
Each time you update the child theme, this may happen. Sadly, WordPress does not allow Child themes of child themes (grand children themes).