No need to turn on the description if you only want the count as on the screenshot. There is probably an error in the code above, can you please try this variation instead:
add_filter('asp_results', 'asp_change_term_count');
function asp_change_term_count($results) {
foreach($results as $k=>&$r){
if ( isset($r->taxonomy) ) {
$term = get_term_by('id', $r->id, $r->taxonomy);
if ( $term->count > 1 ) {
$r->content = $term->count ." Gustscheine";
} else {
$r->content = "Ein Gustscheine";
}
}
}
return $results;
}