Hi! This morning I run CleanMyMac and i'm afraid while scanning, some essential files have been deleted. So far, I'm having issues with these 3 apps. -Mail won't display any emails in the preview pane and crashes when I try to open them. -Messages won't open at all. -Terminal won't open either. -App Store won't open. (Edited) Most of the app icons in Launchpad have disappeared. These are the apps that won't open. (Edited) Is there a way to repair the OS and get all the errors fixed!? ..Or maybe restore Mavericks to its initial state?? (Edited) Thnx!