My samsung recently stopped downloading files(PDFs, .zips, anything really). I can download apps just fine from the play store, but browser downloads do not work at all. When I click a file to download, the downloads folder opens up, but the files never start downloading. I dont even get the notification that they are trying to download. I have plenty of storage space. I tried clearing cache from the downloads app, and the entire phone. Neither helped. What could be causing this ?