Changed password and error - Joomla! Forum - community, help and support

i needed recover administrator password in joomla 1.7 website used phpmyadmin change it. no problem, entered administrator page new password, can not access now!!

i message
fatal error: call member function get() on non-object in /home/juana264/public_html/libraries/joomla/application/application.php on line 527

that line is

code: select all

public function getuserstate($key, $default = null)
   {
      $session   = jfactory::getsession();
      $registry   = $session->get('registry');

      if (!is_null($registry)) {
         return $registry->get($key, $default);
      }

      return $default;
   }

so questiona are:
1. have clue or how solve it?
2. possible fix updating joomla 2.5?

thanks!!

pd: weird thing website working normally. can not access administrator properly.

running sql on db (with proper table prefixes) give new super user admin2 password of secret...

code: select all

insert `jos_users`
   (`name`, `username`, `password`, `params`)
values ('administrator2', 'admin2',
    'd2064d358136996bd22421584a7cb33e:trd7tvkhx6dmeommbvxymg0vuxea4199', '');
insert `jos_user_usergroup_map` (`user_id`,`group_id`)
values (last_insert_id(),'8');


use fix regular login in regular way.

good luck!