phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('a584a23bce24b9b9a32e9bf7febd4a76', -1, 1713239559, 1713239559, '0391c947', -10, 0, 0)

Line : 187
File : sessions.php