There is a bunch of times I have opened my wallet (on win 7, 10 and my Pi) and found my wallet file has become corrupted, at least I think it is, only copying over a new wallet file seems to fix the error, I have found this to be a consistent problem during power failures of my devices. Is there a way I can stop this from happening or is there a Fix devs can do that will stop this, I have never had this problem with any other coin wallet before dispite having run thus far at least 20-30 wallets of different coins at times over the last 3-4 years... thanks guys.
Happen to me once, I fixed it by just using the installer and reinstall OK, restarted my comp and all was working again. (yes happened during power failure too)