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 ('a9e04f0fea3127d1d53b48d7b2c30873', '18.119.135.231', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1734874823)