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 ('37c4beed2d8a1f8964f7f45e3cf59f75', -1, 1714042901, 1714042901, '12769172', -10, 0, 0)

Line : 187
File : sessions.php