Sorry about my english :)
i used DirDetails on FTP server with Pt_BR culture info and i got this error message: "String was not recognized as a valid DateTime.".
I debug the edftp API and found the exception at public class UnixFileParser:FTPFileParser line 229 "lastModified = DateTime.ParseExact(stamp.ToString(), format2, ParsingCulture.DateTimeFormat, DateTimeStyles.None);"
I solve the error change in FTPFileParser class
line 79: private CultureInfo parserCulture = CultureInfo.InvariantCulture;
to
private CultureInfo parserCulture = CultureInfo.CurrentCulture;
Now it work fine for me