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 ('d7716f946f6640cfa7b3dce62de41be3', -1, 1715131701, 1715131701, '12dd0dad', -1, 0, 0)

Line : 189
File : sessions.php