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 ('275103ad8f9ea49e239e5f9e028fb66c', -1, 1714054258, 1714054258, '0390bb67', 20, 0)

Line : 158
File : sessions.php