ok, you need to zap your copy of the blockchain (does not effect wallet!!!) and then start syncing again from scratch…leave that window there, we’ll get back to it in a few minutes.
In File Explorer, go to %AppData%\Zcash\ and delete everything aside from wallet.dat, peers.dat and zcash.conf. After you double check that you didn’t zap wallet.dat by mistake, empty the trash.
Now go back to the PowerShell window and run:
.\zcashd.exe -daemon=0 -showmetrics=1