went through the same. Apparently fork on mintpal. Only way to recover for me was:

1. Make copy of wallet.dat -DO NOT MISS THIS else coin gone
2. Get rid of the entire appdata\roaming\cloakcoin folder
3. Run the wallet
4. stop it and copy your saved wallet.dat back in
5. create a cloakcoin.conf file in the appdata\roaming\cloakcoin folder
6. add some nodes eg this is the content of my file:

Get latest nodes from... http://cloak.blockexplorer.cc/nodes/

7. Run the wallet again and let it sync

I had to restart it a couple of times to get the sync to complete
If your coins don't show (happened to me) : go to debug console and enter and run repairwallet

Should be good after that