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 ('064e849b875167e1add308b9df53fd58', -1, 1714018309, 1714018309, '03926989', 3, 0, 0)

Line : 187
File : sessions.php