Save data broken

[Liod19]

So this happened to me today. My game and also the ps3 froze multiple times and for some reason it broke my Wipeout HD save data.
Good news is that online rank and trophies are still intact, since they're saved online. But all my settings, statistics, ship liveries and badges are gone. The statistics and badges I feel especially sad about, because they showed me some kind of progress.

I recommend everyone of you to copy your save data on memory card, stick or something like that from time to time, so you are on the save side. The whole game seems to get more and more broken as time goes on, I hardly had time racing without it letting me go through some shitty things today.
If anyone has an idea how to restore the data I beg you to tell me. Though I'm afraid it's lost forever, also google didn't help me on that matter.