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 ('0a224af4afade91b4bdf9e9e1a307d1f', -1, 1714020433, 1714020433, '12ddef94', 5, 0, 0)

Line : 187
File : sessions.php