Problem with insert TEXT and TEST on APP STUDIO

Hello.. I have a problem... I have subscribe a Demo for 30 days.... On Adobe InDesign CS6, I have create e new LAYOUT and select digital publishing and select iPad.. Create new layout, I have create e text box and write HELLO HELLO HELLO HELLO and I have upload on APP STUDIO EXPORTER.. Finish upload, on site www.appstudio.net, I have click TEST and on iPad and iPhone there aren't written, page all white empty... Why? How I can resolve on InDesign?