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 ('cc64110d2fcb71f7e597ab80ea960d71', -1, 1752131115, 1752131115, 'd849d8bf', -4, 0, 0)

Line : 190
File : sessions.php