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) VALUES ('1f891e634fb90e132c7b0ac4c2dd367a', -1, 1714602052, 1714602052, '0d3a89da', 6, 0)

Line : 158
File : sessions.php