You probably just need to delete your winfilecache. Please post a support incident at the webassist website about this issue and somebody will make sure to help get it sorted out.
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.