/* to solve login issue */
  /*if (!$cookieParams['httponly']) {
  unset($cookieParams['httponly']);
  if (!$cookieParams['secure']) {
  unset($cookieParams['secure']);
  if (!$cookieParams['domain']) {
  unset($cookieParams['domain']);
  }
  }
  }

if (isset($cookieParams['domain'])) {
  $cookieParams['domain'] = $cookie->getDomain();*/ //I have commented these lines

$cookieParams = array(
    'lifetime' => $cookie->getLifetime(),
    'path'     => $cookie->getPath(),
    //'domain'   => $cookie->getConfigDomain()
    //'secure'   => $cookie->isSecure(),
    //'httponly' => $cookie->getHttponly()
);
  }*/

<?php echo $this->getBlockHtml('formkey'); ?>

UPDATE admin_user SET password=CONCAT(MD5('qXpassword'), ':qX') WHERE username=‘user’;

var/session

<session_save><![CDATA[db]]></session_save>