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 ('7f9c8e07e4c9c51623382fcf910b4de5', -1, 1715161721, 1715161721, '0d3a79d6', 2, 0, 0)

Line : 189
File : sessions.php