posts sorted with custom fields – pagination and infinite scroll

[cyanoorange]

Hi everyone,
I want to sort my posts with a custom field "kosmo_sortier_nr", because I want the user to sort the posts ASC and DSCN (and want to have better control than via the date function).
So far so good.
I have added a variable "aktion" to the hyperlink. If somebody clicks it aktion becomes 1 for the ASC and a two for DSCN link.
With the code below the sorting works, but I have problems with the pagination. The last page link shows a "page not found". AND: I would like to make all this happen with an infinite scroll. I tried the "YITH Infinite Scrolling"-Plugin. But, if I have this on, I infnitily scroll through the first 5 posts. Could anyone help me with that? That would be really great. What am I doing wrong?
Thnx
----
My code in function.php:

add_action('genesis_before_loop','sortierung_Kosmo');
function sortierung_Kosmo(){
       $aktion = filter_input(INPUT_GET, 'aktion', FILTER_SANITIZE_STRING);
 if($aktion!=2 && is_home()){
//     query_posts('meta_key=kosmo_sortier_nr&meta_compare=<=&meta_value=20&orderby=meta_value&order=ASC');
    $paged = ( get_query_var( 'paged' ) ) ? absint( get_query_var( 'paged' ) ) : 1;

     query_posts('paged=' . $paged . '&posts_per_page=5&meta_key=kosmo_sortier_nr&meta_compare=<=&meta_value=20000000&orderby=meta_value&order=ASC'); 
}
}

and

add_action('genesis_before_loop','eintraege_umsortierenNeu');
//add_action('init','eintraege_umsortierenNeu');
function eintraege_umsortierenNeu(){
        $aktion = filter_input(INPUT_GET, 'aktion', FILTER_SANITIZE_STRING);
   if($aktion==2){
       $paged = ( get_query_var( 'paged' ) ) ? absint( get_query_var( 'paged' ) ) : 1;

     query_posts('paged=' . $paged . '&posts_per_page=5&meta_key=kosmo_sortier_nr&meta_compare=<=&meta_value=20000000&orderby=meta_value&order=DSCN'); 
    }
}

[cyanoorange]

PS: This site works with the genesis-sample theme and wp- Version 4.4.1

[cyanoorange]

I opened a more structured threat to solve the problem and it looks like, that I have found the answer ...
http://www.studiopress.community/topic/posts-sorted-with-custom-fields-pagination-problem/

@admin: you can delete this threat, if its to confusing this was. thanx.

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