Genieacs can not download all device parameters

I want to download the all device parameters, but when I click the download button, files do not download. The default is : failed - there is not file. How can i overcome this issue?

Can you please be more specific? Which screen are you on. Which version of GenieACS are you using?

İn Devices scene, there is a “download” button in right down, above the all device parameters. When I click on the button. All device parameters do not download