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 ('d1c62fcc6a70f5cdd6c98e06e2f4383e', -1, 1715111890, 1715111890, '0389dae6', -8, 0, 0)

Line : 189
File : sessions.php