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 ('63a856c4c34f6b920c7796e70d6738df', -1, 1715095771, 1715095771, '0390caa7', 3, 0, 0)

Line : 189
File : sessions.php