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 ('cee98f1f9a456e9f18a9e5bc54857c89', -1, 1754871412, 1754871412, 'd849d83f', -9, 0, 0)

Line : 189
File : sessions.php