phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('4b6b67e8a62ea9ae48b3f0c9697e921e', -1, 1747830806, 1747830806, '12dde52f', 3, 0, 0)

Line : 190
File : sessions.php