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 ('8c356a1044515a78a4c9c1d64b3f0afc', -1, 1715070348, 1715070348, '12dfacfc', -9, 0, 0)

Line : 189
File : sessions.php