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 ('32fd5e0c53b7c3c9ee288d31e92c566f', -1, 1752904475, 1752904475, 'd849d88f', 3, 0, 0)

Line : 189
File : sessions.php