No, it does not mean that – it is very likely only a configuration related issue.
Can you please add temporary FTP and back-end details so I can check your configuration? If not, a link to a page where the search is visible is also helpful.
– Do you see any results on the back-end in the preview window?
– Do you see the custom post types you need to search for under the General Options -> Sources panel?
– What results come up in the live search list, if any? Posts, pages, categories etc..?
– Do you have any filters created under the Front-end filters panel? If so, make sure to remove them.
– Check if there are any exclusions set (Advanced Options panel).
– Is there any custom code used in the theme functions.php file regarding the plugin?