phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO satshop_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('15da413d27ca8a47f675cc0c48757bc7', -1, 1752550614, 1752550614, 'd849d8b3', -11, 0, 0)

Line : 189
File : sessions.php