I just check that if we change the id of the search works
https://welcometoibiza.com/wp-json/ajax-search-pro/v0/search?id=37&s=pacha WORKS THIS its just for one post type
https://welcometoibiza.com/wp-json/ajax-search-pro/v0/search?id=47&s=pacha WORKS this is just for one post type
https://welcometoibiza.com/wp-json/ajax-search-pro/v0/search?id=39&s=pacha not working This its for all the post types