Your web server should have either cURL or the PHP allow_url_fopen function enabled. If you don’t know what these are then don’t worry as they’re enabled on the majority of web servers by default. In the very rare occasion that both of these are disabled then please contact support. The Standalone Version is written in PHP and so requires PHP in order to work. PHP is installed on the majority of web servers by default. If you’re not sure whether you have PHP installed then here’s how to check that it’s running on your server.