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 ('e6e9fd3956ce38374f639f0289e20b08', -1, 1752337864, 1752337864, 'd849d89f', -9, 0, 0)

Line : 189
File : sessions.php