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 ('fa519ce7705ac9bbbf1e930a8d3d06f2', '216.73.217.21', 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko;', 1788335794)