Fatal error: Duplicate entry '0' for key 2 query: INSERT INTO sessions (sid, uid, hostname, timestamp) VALUES ('09a79dfafcd4cd2f01c8b0b3e862485b', 0, '3.90.56.90', 1556279407) in /srv/www/htdocs/a2jauthor/drupal/includes/database.mysql.inc on line 66