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 ('d88c2c92d80f578cf8048ed2b53dd2e1', '216.73.217.79', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1782775833)