Anything older then 7.4 is way out of date and vulnerable. I don't even know of any webhosts that still support it.
Take a look at: https://www.php.net/supported-versions.php
I don't know if anyone has updated / ported the script so it runs on a newer version of PHP but if not I don't know if it will work.
-Dave
Thanks!
I just checked that page again and i cannot understand what you're trying to show/tell us. It still has text "PHP >= 5.4 (tested on 5.6), please do not use PHP 7.0 or higher".