I'm running ZC 1.3.0 and a few weeks ago I installed Pdfcatalog. It worked fine for a few days and now I can not get the configuration page link in the admin menus. The Sidebox, which I have turned on, does not show anymore either. The "Generate PDF Catalog" shows up in the menus with no problem and I can get a PDF version of the catalog generated. All the files are there in the right folders with the proper permissions.