Don’t show outstanding image in post/page

Hello!

I use cocktail template plus and I would like to delete outstanding image in post or page but I would like to use for preview in searchers

Now in this page, there is a image in the top and bellow a gallery. I would like the image without delete from preview in searchers.

Is it possible? Thanks!!

Web: https://pequenasgrandescousas.es/fotos-talleres-lettering-salamanca/

The page I need help with: [log in to see the link]