phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO blitz_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('2ba6ef5babd8e23b497f2fb50300979b', -1, 1713983844, 1713983844, '0aa8c802', 48, 0, 0)

Line : 200
File : sessions.php