A Database Error Occurred

Error Number: 1054

Unknown column 'picture_id' in 'field list'

UPDATE `ci_sessions` SET `picture_id` = '12897', `title` = 'new project', `last_activity` = 1371589021, `user_data` = 'a:2:{s:8:\"language\";s:7:\"english\";s:7:\"user_id\";s:9:\"914007906\";}' WHERE `session_id` = '79ac9437665c4c677bf1c1f298df8c3f'