KMZ file reading error

Hi advanced experts~

Just reading of my kmz file generating error message in a row as follows;

• HTTP transfer summary - status code: 200, download size: '20 bytes', DNS lookup time: '1e-6 seconds', total transfer time: '0.266 seconds', url: 'http://cloudrf.com/API/ppa/rx.php?uid=20574&f;=0220003602_Dairy_Flat_1a.4326&'
• KML: The file `C:\\FME_TEMP\\FME_OGCKML_DLTEMP_1520219068411_14984\\FME_KML_1520219072179_14984\\rx.php' has an invalid or unsupported extension `php'
• KML: The url `http://cloudrf.com/API/ppa/rx.php?uid=20574&f;=0220003602_Dairy_Flat_1a.4326&' was downloaded, but the resulting file, with mime-type`text/html', does not appear to be a supported file type

any experience in this?

please your experience..

Thanks

David