Latest Version of Carbide CreaWon't Work For Me!

I downloaded the latest version.
Unforunately, now I can’t open anything that I’ve created.
I use Candle for my little SainSmart 3018 PRO.
With version 451 everything worked just fine.
Now I’m not having any luck … and I can’t find anywhere to download version 451 …

I’ve sent you a link in a PM.

Please let us know if you need any further assistance with this sort of thing at support@carbide3d.com