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 ('95126a66282edae192e65264fa0e6994', -1, 1714682156, 1714682156, '0391177b', 8, 0)

Line : 158
File : sessions.php