Project Configurator documentation has been improved these days. There are new articles that try to explain the causes and likely solutions for some of the problems that users have reported when using the plugin. Most of these new pages can be seen here.
Our goal is that these new articles may help users to find a quick answer if they ever come across similar situations (most users will not). Nevertheless, remember you can always reach us via our issue tracker or our support email address. We will be glad to help!