phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b7ea40ffdbe0334f609c17dd8c850559', -1, 1751415016, 1751415016, 'd849d81c', 39, 0, 0)

Line : 190
File : sessions.php