When activating ILL on a package installation you receive a 404 error instead of the more helpful message to check the about page for more information. As we have highlighted ILL as a new feature for 17.11 it would be good if this could be fixed.
I tested the package before release and also activated the ILL module. I did not get a 404 but the message to check the about page. I don't remember if I did it in the English or German version. Which language did you use?
We checked our dev installation - looks good there. But some of the demo installations show the problem. Could be something else, but what would cause it?
I belive this has been fixed since.