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 ('e4bb602b26f2a76d6207636eb8a97e2c', -1, 1752887462, 1752887462, 'd849d8a2', 0, 0, 0)

Line : 190
File : sessions.php