Vultr VPS For WHMCS v1.2.0 Not Nulled

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Can you show update link for me pls.
 
create new file name delwhmcs.php in your cronjob folder and paste this code

PHP:
<?php
// change your directory
include_once('/your/home/directory/to/configuration.php');
$conn = mysqli_connect($db_host, $db_username, $db_password, $db_name);
if(! $conn ) {
               die('Could not connect: ' . mysqli_connect_error());
            }
$sql = "DELETE FROM tblconfiguration WHERE setting='vultr_vps_localkey'";
if(mysqli_query($conn, $sql)){
    echo "Records were deleted successfully.";
} else{
    echo "ERROR: Could not able to execute $sql. " . mysqli_error($conn);
}
// Close connection
mysqli_close($conn);
die;

then create cronjob for run every day and use this code
Python:
php -q /your/home/directory/to/your/folder/delwhmcs.php