After installing and configuring this module, I have faced the following isue:

Whenever I create a product node and then want to add the S3 file download product feature, I edit the node. This is what appears after clicking the "features" tab

You must add files at the Ubercart S3 file download administration page in order to attach them to a product model.

Then clicking the link goes to a blank page (WSOD).

Any assistant would be appreciated.

My regards,
Tamas.