flexi auth - A user authentication library for CodeIgniter

[eluser]xuma[/eluser]
Thanks @hasseydesign
Finally i solved problem.Changing ci_sessions table charset is the key.

Code:

ALTER TABLE  `ci_sessions` CHANGE  `user_data`  `user_data` TEXT CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL

I think we can define it a codeigniter bug.