Search Results Header & Footer

I have tried using the information from this post to create a conditional statement for different headers and footers in my search results: https://www.ads-software.com/support/topic/how-to-search-results-landing-page-with-custom-header-for-each-language?replies=3

I used this code in my search.php template for the custom headers and footers for each language:

<?php $currentlang = get_bloginfo('language');
 if($currentlang=="en_US"): get_header();
 elseif($currentlang=="fr_FR"): get_header('fr');
 elseif($currentlang=="en_GB"): get_header('uk');
 else: get_header('de');
 endif; ?>

The code is not working, because it keeps the headers and footers for DE for every language. Any help is greatly appreciated.

https://www.ads-software.com/plugins/polylang/