@downloader
To answer your PN publicly:
To me the errormessage on their website is easy to understand:
Here is a screenshot of the filejoker website when trying to download that file:
... it states that the file is only downloadable with a premium account -> Even if our plugin for free downloading was working at this moment, you could only download it with a filejoker.net premium account!
-psp-
EDIT
You had another question:
"Is there any other way to download this file" - No - buy a premium account or find someone that owns one and is willing to download that file for you.