An uncaught Exception was encountered

Type: Exception

Message: Session: Configured save path '' is not a directory, doesn't exist or cannot be created.

Filename: /home/asq/codeigniter/system/libraries/Session/drivers/Session_files_driver.php

Line Number: 119

Backtrace:

File: /home/asq/codeigniter/application/core/MY_Controller.php
Line: 11
Function: library

File: /home/asq/codeigniter/application/controllers/Discussion.php
Line: 25
Function: __construct

File: /home/asq/public_html/index.php
Line: 293
Function: require_once