For some very strange reason this happened to me too. I had to copy the SHA1.php file from another site and paste it into my current sa folder in my web directory
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.