I had this error when uploading files directly via the related object panel in article editing. The uploaded file was assigned to section 0, which the normal users didn't have access to read.
I got around it by uploading the file in the same folder as the article, moving it to be a child of the article, and then relate it in edit view. Not a very effective way of doing it, but it works..
You must be logged in to post messages in this topic!