Costumize result template with Custom post Type

Hi, I tried to costumize the result template using the code you mentioned here: https://www.ads-software.com/support/topic/costumize-result-template?replies=30

but when I add it to my function.php my search doesnt display any result.

Iam using a custom post type with custom taxonomies and I wanted to display the tittle, thumbnail and some metabox I created.

thanks!

https://www.ads-software.com/plugins/ajax-wp-query-search-filter/