Hi Willem,
I tried to log-in with the details, but I was not able to, either the back-end username or password is incorrec, can you please check that?
Also, make sure that the Media Service feature is enabled. If not, then after enabling, please re-create the index table. In your pre-sales query you have stated that you have requested a media service key already, but needed the product for it. We have tested the PDFs you have sent to us via our local installation on our Media Service server.
I suspect the media service feature is probably not enabled.