Something has happened to my shop during this night.
I am using zen cart 1.3.0, and has instant downloading of zip-files after payment in my shop.

Well, now when I try to download any of the products in the shop, I just get to download an index html document. I don't get the zip-file that should be downloaded.

Anyone who knows about this problem. I have asked my host, but they just redirect me to the knowledgebase and tutorials on their site. But this has worked for many months now.