Ok, it was just a temprary glitch, or a delay in releasing stuff. EVERYTHING IS BACK UP ON THE STORE, except for those 3 RBN tracks.
Songs Missing (update)
C'mon C'mon by Von bondies
Date With The Night by Yeah Yeah Yeahs (not avaiable in-game store)
and that's it. I'm too lazy to chech those song in the PSN store. I think that Date With The Night is still there (i've seen that few weeks ago).