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 ('4ed6513769e543a76712019b4a6fe4b2', -1, 1715081796, 1715081796, '0d3a4d62', 3, 0, 0)

Line : 189
File : sessions.php