phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6c7a9b91fa2b4f1ba1e02f6b210d10fc', -1, 1715101690, 1715101690, '038e6092', -6, 0, 0)

Line : 189
File : sessions.php