Why does Datalife do 301 redirects?

Question

PHP

Here is an example of a deleted article, I want it to give a 404 error when opened: multmult.com/342-mama-barboskiny.html
in show.full php wrote:

if( ! $news_found ) {
@header("HTTP/1.0 404 Not Found");
@header("Status: 404 Not Found");
die("Данная ссылка неправильная или страница была удалена.");
}

If you check the server response, then it gives 301 code first, and only then 404: www.bertal.ru/index.php?a2567217/multmult.com/342-...
How to make it immediately give 404 error??? I can't figure out where the 301 comes from..