Problem with Async Mode. Still FALSE [#1761610]

I've followed the instructions on the README.txt but I'm still having problem with the Async Mode. I also have read other posts regarding this topic if they give me some ideas, but i'm unable to make it work. I'm using advagg with an Open Atrium installation. I post here the Asynchronous debug info:

stdClass Object (
    [request] => GET /user/login?destination= HTTP/1.0
Host: www.grupofundraising.es
User-Agent: Drupal (+http://drupal.org/)
Connection: close

    [data] => <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="es" lang="es" dir="ltr">
  <head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">var NREUMQ=NREUMQ||[];NREUMQ.push(["mark","firstbyte",new Date().getTime()]);</script>
<link rel="shortcut icon" href="/sites/default/files/favicon.ico" type="image/x-icon" />
    <link type="text/css" rel="stylesheet" media="all" href="/profiles/openatrium/modules/contrib/codefilter/codefilter.css?j" />
<link type="text/css" rel="stylesheet" media="all" href="/sites/default/files/advagg_css/css_efd137593c0fb80a3da21bc6c1424ed6_0.css" />
<link type="text/css" rel="stylesheet" media="all" href="/sites/default/files/advagg_css/css_6f7078b5ff336ddf7cc857dec223d3cb_0.css" />
<link type="text/css" rel="stylesheet" media="all" href="/sites/default/files/advagg_css/css_d0109ca97378529bce75024445dde11e_0.css" />
<link type="text/css" rel="stylesheet" media="screen" href="/sites/default/files/advagg_css/css_05ba21857b429d77839737df2eceda53_0.css" />
<link type="text/css" rel="stylesheet" media="screen" href="/sites/default/files/advagg_css/css_782b23ae482ff4e08989360e809a4fb4_0.css" />
<link type="text/css" rel="stylesheet" media="screen" href="/sites/default/files/advagg_css/css_f569fe86f52f88e64689d08479cfbb8d_0.css" />
<link type="text/css" rel="stylesheet" media="screen" href="/sites/default/files/advagg_css/css_cca333357538b393e2bb09fcdc5f428c_0.css" />
<link type="text/css" rel="stylesheet" media="print" href="/sites/default/files/advagg_css/css_a15ac1f87d78d5edb067a7f27ca58ee1_0.css" />
<link type="text/css" rel="stylesheet" media="print" href="/sites/default/files/advagg_css/css_2310deeb66cfae9da93520eb9aa0fd06_0.css" />
<link type="text/css" rel="stylesheet" media="print" href="/sites/default/files/advagg_css/css_7081e46b2a2ba5ea9c9b29fff5630eac_0.css" />
<style type='text/css'>
.atrium-welcome-links a:hover,
.dropdown-blocks .block-toggle li a:hover,
.dropdown-blocks .block-toggle li a:focus,
.dropdown-blocks .block-toggle ul.links li a:hover,
.dropdown-blocks .block-toggle ul.links li a:focus,
.dropdown-blocks .block-toggle .item-list li a:hover,
.dropdown-blocks .block-toggle .item-list li a:focus,
.pager li.pager-current,
.more-link a:hover,
#global,
#navigation { background-color:#b8e52e; }
body #space-tools .block-title { background-color:#80a020; }
body #header .block-widget .block-content,
body #header .block .block-title { background-color:#9cc227; }
body .page-region .block .block-title {
  background-color:#e3ecc7;
  border-color:#d5deba;
  border-bottom-color:#c8d1ac;
  }
.drilldown .trail a {
  border-top-color:#fbfdf4;
  border-bottom-color:#dbddd4;
  background-color:#ebede4;
  }
.decay-10 .comment-title { border-color:#eeeeee; }
.decay-9 .comment-title { border-color:#e8edda; }
.decay-8 .comment-title { border-color:#e3ecc7; }
.decay-7 .comment-title { border-color:#ddebb4; }
.decay-6 .comment-title { border-color:#d8eaa1; }
.decay-5 .comment-title { border-color:#d3e98e; }
.decay-4 .comment-title { border-color:#cde87a; }
.decay-3 .comment-title { border-color:#c8e767; }
.decay-2 .comment-title { border-color:#c2e654; }
.decay-1 .comment-title { border-color:#bde541; }
.decay-0 .comment-title { border-color:#b8e52e; }
</style>
    <script type="text/javascript" src="/sites/default/files/advagg_js/js_10f7c95bdc8e1ec8568659b550a77ede_0.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js_57fe47dcb13084477c1a03423e9bee90_0.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js_7abe6802a8c38d8a16324e8be5ea0d27_0.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js_d7809633fa848602f31d7d0a6b8c6bcf_0.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
jQuery.extend(Drupal.settings, {"basePath":"\/","getQ":"user\/login"});
//--><!]]>
</script>
    <!--[if lte IE 8]><style type='text/css' media='screen'>@import '/sites/all/themes/fisl/ie.css';</style><![endif]-->    <title>Cuenta de usuario | Intranet FISL</title>
  </head>
  <body  class="not-front not-logged-in page-user no-sidebars tao rubik admin-static layout-login">

-----ommited for brevity 


</body>
</html>
    [protocol] => HTTP/1.1
    [status_message] => OK
    [headers] => Array (
            [Date] => Wed, 29 Aug 2012 07:47:22 GMT
            [Server] => Apache/2.2.14 (Ubuntu)
            [X-Powered-By] => PHP/5.3.2-1ubuntu4.14
            [Set-Cookie] => SESS59d359b1556d8235f92672366624e863=973anbtmke7dgrqke1ckehg1q5; expires=Fri, 21-Sep-2012 11:20:42 GMT; path=/; domain=.grupofundraising.es
            [Last-Modified] => Wed, 29 Aug 2012 07:45:50 GMT
            [ETag] => "67cfbca9d4214bb193b3b819c520799d"
            [Expires] => Sun, 19 Nov 1978 05:00:00 GMT
            [Cache-Control] => must-revalidate
            [Vary] => Accept-Encoding
            [Connection] => close
            [Content-Type] => text/html; charset=utf-8
        )
    [code] => 302
    [redirect_code] => 302
    [redirect_url] => https://www.grupofundraising.es/sites/default/files/advagg_css/css_missing2054192091346226442_0.css
    [timer] => Array (
            [count] => 1
            [time] => 223.64
        )
)