Tony's mobile phone is having trouble with Google apps. Leo says if all of his Google apps have been affected, that means it's the backend services that are broken, which is a side effect of having an open source scheme. Leo says that Google has redesigned their apps to "look" like apps, but they are mostly web driven. So he'll have to make sure all of his software updates are done, from the carrier and Google Play store.
If that's already been done, then it could just be damaged. He should try deleting and reinstalling them. If it still doesn't work, he'll probably have to rebuild the phone. He should backup his data to Google and then do a factory restore.