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 ('0a47c2c2597dcb6358828b1d44c7c82d', -1, 1714289904, 1714289904, '0390609f', 19, 0)

Line : 158
File : sessions.php