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 ('15b6047648b8a5a29f7ce1c2d7b194ce', -1, 1747542396, 1747542396, '030e4f99', 3, 0, 0)

Line : 190
File : sessions.php