A Database Error Occurred

Error Number: 1364

Field 'parent_id' doesn't have a default value

INSERT INTO `ci_sessions` (`id`, `ip_address`, `timestamp`, `data`) VALUES ('e39f0c7e96ec1e44b6a0ead63342655b', '54.242.193.41', 1563838294, '__ci_last_regenerate|i:1563838294;language|s:7:\"swedish\";languageid|i:2;')

Filename: libraries/Session/drivers/Session_database_driver.php

Line Number: 224