Search button in header is hidden on each postpage

By default, the search button in the header main menu is hidden for posts.

In the file:
/auxin/auxin-include/include/templates/templates-header.php

You will find the function:
auin_get_header_layout()

In this function you will find this piece of code:

    if ( 'default' === $add_search = auxin_get_post_meta( $post, 'page_header_search_button' ) ) {
        $add_search    = auxin_get_option( 'site_header_search_button' );
    }

But the function auxin_get_post_meta( $post, ‘page_header_search_button’ ) will return null because this option doesn’t exist. You can’t set in in the wp-admin section. The if statement will fail and the default value of $add_search = false will be used.

Solution:
Add option to toggle the search button per blog in wp-admin or check the return value correctly so that $add_search = auxin_get_option( ‘site_header_search_button’ ); will be used.

Thank you.

Tim
Timdehoog.nl