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 ('7af2710eb3cc99bd8a8adb2439a725d6', -1, 1730416081, 1730416081, '340fad40', -1280, 0, 0)

Line : 195
File : sessions.php