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 ('6a3b300185a65082ed04da4398a9c58f', '216.73.216.136', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1781641079)