I am trying to upload a files thru drupal (attachment of a template) and got the following error from the provider:

Premature end of script headers: /home/ciqs/public_html/index.php
In this case, a client from the IP address 17.18.9.20 was trying to access /home/username/public_html/images/imagename.gif which is an image file that does not exist. While this does not give you a specific way to see how the client got to imagename.gif, it can be very helpful in catching spelling errors in your links to pages and images.

The images file are in de directory www/files/images. I copy this also to www.images so he is now also in public_html but still not working.

I am uploading a pdf file and not an image.

Sometimes I got the msg: 500 Internall Service Error.

The permission is < 755

Who has an idee?