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 ('f7f34b29e39b7bf4faaf202d33e95f1a', '172.18.0.3', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1779689808)