Using the Sessiong class

[eluser]Reneesh T K[/eluser]
autoload session in autoload.php page in config folder like the below

$autoload['libraries'] = array('database','session','form_validation','pagination','email');


Check the config table and check for is session is using database:

$config['sess_cookie_name'] = 'ci_frontend_session';
$config['sess_expiration'] = 7200;
$config['sess_expire_on_close'] = FALSE;
$config['sess_encrypt_cookie'] = FALSE;
$config['sess_use_database'] = TRUE;
$config['sess_table_name'] = 'ci_frontend_sessions';
$config['sess_match_ip'] = FALSE;
$config['sess_match_useragent'] = TRUE;
$config['sess_time_to_update'] = 300;

If it is using database, check is anything entering to the table when a page loads.

I think there is no need to include session in each page. If it is loading in autoload.php page, it is working normally.