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 ('64c2674127b7f7bd8cfe5c6bb4084ca7', -1, 1715101744, 1715101744, '030c9b94', -1, 0, 0)

Line : 189
File : sessions.php