Hi; We are not able to reach sample flac file to investigate the issue. Before making any download request please call CheckConversionStatus method and ensure conversionStatus field equals to Completed. Kind Regards;

Hi; Just checked and confirm it responds well. Please be sure that you provide valid parameters. Notice: Please test conversion in OGG or MP3 format, if you are using Mashape UI (probably a mashape UI bug). But you may use all features in your application. Kind Regards;

Could you give more details about error? we can't get that exception.