Fotomagico update on Mac store not working

I purchased fotomagico 3.7 about 5 months ago on the Mac app store for my Mac pro. It indicates an update is available for version 3.7.6. It does the download but then indicates that an error has occurred during install. Any solution to this ?

3.7.6 is the latest version currently available, so the Mac App Store application might be wrong, but that is out of our influence. Nevertheless FotoMagico 3.8 hould be available soon.