How can maintaining the folder structure of a downloaded contact form ZIP file impact the functionality of the PHP script and lead to HTTP Error 500?

Maintaining the folder structure of a downloaded contact form ZIP file is crucial for the PHP script to locate and include necessary files correctly. If the folder structure is not maintained, the PHP script may not be able to find required files, leading to HTTP Error 500. To solve this issue, ensure that the folder structure of the downloaded contact form ZIP file is preserved when extracting it.

<?php
// Include necessary files with correct folder structure
require_once('path/to/include/file.php');
// Rest of the PHP script
?>