CI 3 HMVC Modular Extensions can't load Session Library

Code:

$config['sess_driver'] = 'database';
$config['sess_save_path'] = 'ci_sessions';

You also need to create the table if it does not exist.

You do not have to save sessions to database if you have not designed your app to. The fix for the above issue is:
1. Open the config.php in Application folder
2.  on line 367(my case) look for $config['sess_save_path'] = NULL.
3. Change this line to :

Code:

$config['sess_save_path'] = sys_get_temp_dir();

4. Save the edit and reload the application.