phpBB by Przemo : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('f6903cc0d941cbbf0ac1650f7c1c2a0f', -1, 1746783847, 1746783847, '0394d91a', -4, 0, 0)

Line : 443
File : sessions.php