That error is a problem in creating data Bindings on the bindings panel
It can probably be ignored, the worst that will happen is some bindings wont get created.
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.