Hi Tom,
yes finally this remark was the solution. From many changes in functions.php there was this forgotten piece of code:
if (is_search()) {
$query->is_search = false;
$query->query_vars = false;
$query->query = false;
if ($error == true) {$query->is_404 = true;}
}
}
add_action(‘parse_query’, ‘guru20_filter_query’);
add_filter(‘get_search_form’, create_function(‘$a’, “return null;”));
oh, oh, oh… but now the search can be activated!
Thanks, Rainer