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 ('9ec67cb733ee6643ce80fff3032fd5ce', '107.22.48.243', 'CCBot/2.0 (http://commoncrawl.org/faq/)', 1524462402)