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 ('c1d9685421661a9040223f646c2d95db', -1, 1715301656, 1715301656, '340e0ea4', -8, 0, 0)

Line : 189
File : sessions.php