Hello. I've just noticed that a very strange thing happened to my Mac. I was just looking for an application, when I noticed it wasn't in the /Applications folder anymore. "Strange", I thought. I downloaded it again and placed it in the /Applications folder. Now, looking more carefully, I noticed that many apps are missing, from Clean My Mac to Mozilla Firefox. I deep scanned the whole filesystem looking for those apps, but they aren't neither in the trash, nor in any other place. Furthermore, along with the *.app files, the applications' data is missing too. There is no track of it in the Application Support folder, in the Library, or in any other path on my computer. What a strange fact! Can you help me?