Przycisk "zapamiętaj mnie" nie działa.

wersja skryptu MyBB: 1.8
adres forum: haxballerz.xaa.pl
na czym polega problem (screen, opis, komunikaty):

Tak jak w temacie, po pewnym czasie gdy odświeży ktoś stronę to ponownie musi się zalogować, mimo zaznaczonej opcji.

header_welcomeblock_guest

<div id="test-popup" class="signwhite-popup mfp-with-anim mfp-hide">
 <div class="signmodalContent loginModalContent">
<div class="logintabwrap">
<ul class="logintabs">
<li><a href="#logintab1">Logowanie</a></li>
<li><a href="#logintab2">Rejestracja</a></li>
</ul>
<div class="logintabcontent" id="logintab1">
<div class="login">
<form method="post" action="member.php">
  <h2>Zaloguj się do {$mybb->settings['bbname']}</h2>
<div class="form-group ">
       <input type="text" class="form-control" placeholder="Login" id="UserName" name="username">
       <i class="fa fa-user"></i>
     </div>
     <div class="form-group log-status">
       <input type="password" class="form-control" placeholder="Hasło" id="Passwod" name="password">
       <i class="fa fa-lock"></i>
     </div>
  <div class="remember">
    <input checked="" id="remember" name="remember" type="checkbox"/>
    <label for="remember"></label>Zapamiętaj mnie
  </div>
  <input type="submit" value="Zaloguj" name="submit" />
<input type="hidden" value="do_login" name="action" />
<input type="hidden" value="" name="url" />
  <a class="forgot" href="{$mybb->settings['bburl']}/member.php?action=lostpw">Zapomniałeś swojego hasła?</a>
</div>
</div>
<div class="logintabcontent" id="logintab2">
<div class="signin">
<h2>Zarejestruj się na {$mybb->settings['bbname']}</h2>
<div class="loginsignup">
<p>Chcesz założyć konto?</p>
<div class="emaillogin"><a href="{$mybb->settings['bburl']}/member.php?action=register"><i class="fa fa-envelope"></i> Przejdź do rejestracji</a></div>
</div>
<p>LUB</p>
<div class="social-login">
      <a href="#">
        <i class="fa fa-facebook fa-lg"></i>
        Zaloguj przez Facebook'a
      </a>
      <a href="#">
        <i class="fa fa-google-plus fa-lg"></i>
        Zaloguj przez Google
      </a>
    </div>
</div>
</div>
</div>
</div>
</div>


<div class="nhmnav">
<ul><li><a href="#test-popup" data-effect="mfp-zoom-in" name="modal" rel="#loginModal" title="Posiadasz już konto? Zaloguj się." id="inline-popups" class="loginlink"><i class="fa fa-sign-in" style="margin-right: 6px;"></i> Logowanie</a></li>
<li><a href="{$mybb->settings['bburl']}/member.php?action=register" title="Nie posiadasz jeszcze konta? Zrób to teraz!" class="createaccount"><i class="fa fa-certificate" style="margin-right: 6px;"></i> <span class="responsivehide"> Rejestracja</span></a></li>
</ul>
</div>

headerinclude

<link rel="alternate" type="application/rss+xml" title="{$lang->latest_threads} (RSS 2.0)" href="{$mybb->settings['bburl']}/syndication.php" />
<link rel="alternate" type="application/atom+xml" title="{$lang->latest_threads} (Atom 1.0)" href="{$mybb->settings['bburl']}/syndication.php?type=atom1.0" />
<meta http-equiv="Content-Type" content="text/html; charset={$charset}" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/jquery.js?ver=1804"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/jquery.plugins.min.js?ver=1804"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/general.js?ver=1804"></script>
<script type="text/javascript" src="images/tg/js/tg.js"></script>
<script type="text/javascript" src="images/tg/js/lb.js"></script>
<script type="text/javascript" src="{$mybb->asset_url}/jscripts/xem_fast_rep.js"></script>
{$stylesheets}
<link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" href="{$mybb->settings['bburl']}/images/tg/font/fa.css">
<link rel="stylesheet" href="{$mybb->settings['bburl']}/images/tg/js/lb.css">
<script type="text/javascript">
lang.unknown_error = "{$lang->unknown_error}";

lang.select2_match = "{$lang->select2_match}";
lang.select2_matches = "{$lang->select2_matches}";
lang.select2_nomatches = "{$lang->select2_nomatches}";
lang.select2_inputtooshort_single = "{$lang->select2_inputtooshort_single}";
lang.select2_inputtooshort_plural = "{$lang->select2_inputtooshort_plural}";
lang.select2_inputtoolong_single = "{$lang->select2_inputtoolong_single}";
lang.select2_inputtoolong_plural = "{$lang->select2_inputtoolong_plural}";
lang.select2_selectiontoobig_single = "{$lang->select2_selectiontoobig_single}";
lang.select2_selectiontoobig_plural = "{$lang->select2_selectiontoobig_plural}";
lang.select2_loadmore = "{$lang->select2_loadmore}";
lang.select2_searching = "{$lang->select2_searching}";

var cookieDomain = "{$mybb->settings['cookiedomain']}";
var cookiePath = "{$mybb->settings['cookiepath']}";
var cookiePrefix = "{$mybb->settings['cookieprefix']}";
var deleteevent_confirm = "{$lang->deleteevent_confirm}";
var removeattach_confirm = "{$lang->removeattach_confirm}";
var loading_text = '{$lang->ajax_loading}';
var saving_changes = '{$lang->saving_changes}';
var use_xmlhttprequest = "{$mybb->settings['use_xmlhttprequest']}";
var my_post_key = "{$mybb->post_code}";
var rootpath = "{$mybb->settings['bburl']}";
var imagepath = "{$theme['imgdir']}";
  var yes_confirm = "{$lang->yes}";
var no_confirm = "{$lang->no}";
var MyBBEditor = null;
var spinner_image = "{$theme['imgdir']}/spinner.gif";
var spinner = "<img src='" + spinner_image +"' alt='' />";
var modal_zindex = 9999;
</script>