I just bought some CINNI, PUMP IT UP!

I upgraded to new wallet yesterday and was running it fine. Shut down my computer and now when trying to open wallet getting this error: Error loading blkindex.dat
*Windows 8 - CINNI ver. 1.1.0.0
Could someone please advise?
Thanks,
J
I had this same problem. Fixed by deleting C:\Users\username\AppData\Roaming\CinniCoin\blkindex.dat