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 ('9dab4b338db6b1d04f7b7c18b042fd01', -1, 1715240067, 1715240067, '0d3b3d77', -8, 0, 0)

Line : 189
File : sessions.php