The exact same thing is happening to me. We need to download 6.0.1 version because it's the latest that can run on Snow Leopard. Everything was perfect til today.
I also tried to recover the app from a backup (Carbon copy cloner) but it's not working.
I don't wanna upgrade to any other OS, and I...
I have the same problem.
I bought the program from Appstore on 2/2/2015, everything was good until today. It said that the program wa damaged and that it has to be replaced by downloading it again from th app store, but I can't do it cause it won't let me do that because of the os.
I still use...