A Database Error Occurred

Error Number: 1364

Field 'user_data' doesn't have a default value

INSERT INTO `tbtt_session` (`session_id`, `ip_address`, `user_agent`, `last_activity`) VALUES ('924df64ce1e0b1403b7649683833e891', '216.73.216.30', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1788613051)