Problem with pgp & pacman 4.x (testing)

["Stefano Z." <mie.iscrizioni@xxxxxxxxx>]

Hello,

i'm having problem with latest updates,
http://pastebin.com/b5e5mUbn

after i've done pacman-key --init (after i've installed the new pacman 4.x),
i receive also those errors,
what is the problem ?
Sorry for my english & newbe  :)

thanks