So I deleted all my previous LCP files except the wallet backup, and I re-downloaded it and started it again.
Exact same problem: at 98% fast load, error window comes up, Windows tries to find a solution to the problem, then it all goes to pot.
So I'm sitting with my LCP .dat file and no way to access it.
If you were starting from scratch, the fast load would not happen.
shut down the wallet
rename the file
C:\Users\
yourname\AppData\Roaming\LitecoinPlus
to
C:\Users\
yourname\AppData\Roaming\LitecoinPlus-old
and restart your wallet
this will create a new wallet and download the chain from block zero
once the wallet is in sync, rename the wallet.dat file to wallet.dat-old in the new
C:\Users\
yourname\AppData\Roaming\LitecoinPlus
copy the wallet.datfile (or your backup) from
C:\Users\
yourname\AppData\Roaming\LitecoinPlus-old
to
C:\Users\
yourname\AppData\Roaming\LitecoinPlus
and restart your wallet
if your coins are there - but not confirmed:
you can try
wallet/repair
if that doesn't work - try
wallet/zap wallet
please note 'zap wallet' can take a while, it removes the transactions from your wallet, and searches the complete blockchain for transactions.