In some cases, error appear in form of letters. For example, you can see an E or an F on the certificates when something is not working right. Since the developers of the application don't offer any support at all, I recommend checking the built-in help file where you might get an explanation related to errors and their meaning.
Additionally, you could contact the developers of the application to get an official statement: http://acolytesoftware.net/contact.aspx
