phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('726f76736fccf7ef5304ec89aead4a45', -1, 1715097884, 1715097884, '03850cac', -9, 0, 0)

Line : 189
File : sessions.php