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 ('c96a7fa7ff3d297bc8fe3b7c77841b33', '216.73.216.201', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1780138449)