iTunes App Store Error Message "Invalid Argument"

[Chesy]

From last week, when I wanted to access and download "Flipboard" from the app store via my iPod touch G4, suddenly the above error message appeared again and again. After that even other apps could not be viewed in the app store. After a few minutes apps others than "Flipboard" went on to normal and be available again. Anyone else the same experience? How could I solve then?

Thanks here

Chesy