Same problem here, are you from brazil?
Nope. This helped me for the first problem...
You've to copy all data from C:/Users/YourUser/AppData/Romaing/Dubaicoin to new Dbix Wallet Folder.
My wallet is connected to 0 peers about 1 hour, i can´t transfer any coin (receive or send), yesterday was working fine. I will use coinpayments wallet, it´s impossible to mine and trust this horrible wallet. I think at some point several miners will lose money with this shitty wallet.