I finally tried recovering from full backup and it worked great. I have all my gbytes and blackbytes back.
I did this many times, the chain is not downloaded fully and after a while, error occurs always on start.
Is it possible to send everything in the wallet, that is not up to date (maybe state of two month ago),
to another new created wallet, even without displaying the correct current amount? On the faulty state that still works, it is ~5GB, but the address holds ~6GB to the time of now. I'd like to transfer the full amount ~6GB byte and 12GB blckbytes to new wallet.
Is lightwallet better? Does the lightwallet hold blackbytes?