The actual error is a bad database connection. I fixed the page to show the correct error message, but check the database server, username, and password settings to make sure they are correct.
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.