A Database Error Occurred

Error Number: 1364

Field 'user_data' doesn't have a default value

INSERT INTO `ci_sessions` (`session_id`, `ip_address`, `user_agent`, `last_activity`) VALUES ('10435b9eb3883a38404830ca34b2a957', '54.163.157.48', 'CCBot/2.0 (http://commoncrawl.org/faq/)', 1490370808)