Hello,
Please make sure that the path of exportHandler='FCExporter.php' is correct and there is a little modification you need to do in FCExporter.php like
define ( "SAVE_PATH", "./" ); Place your folder path here.
define ( "HTTP_URI", "http://www.yourdomain.com/images/" ); Define your HTTP Mapping Url here.
Hope this solves your purpose.
Looking forward to your feedback on the same.