Why is this message appearing? What is the reason?

"Download server with your file is temporary unavailable!
File Server: http://ss02.wdupload.com"

Hello, The file you are trying to download is located on the server "http://ss02.wdupload.com/".
However, this server sometimes times out and doesn't react. Therefore, the file cannot be downloaded.

Click on the link: http://ss02.wdupload.com/

If the page opens when you click on the link above, the links work.
When you click the link above, the page does not open and you will get this error again if a timeout occurs.