Photo Manager froze and terminating the process led Folder to disappear from Navigation and Info tab, although Photo & Video, Categories, Albums, and Preview still show.
Database option is also missing when it was there before. I tried uninstalling and reinstalling too. It only Shows: File>Edit>Window>Share>Tasks>Help in first banner and Import>Selection>Export>Print>Burn>Slideshow>Cloud-Import in banner below. So something is corrupted beyond the Database.