CSS Sculptor 1 is not compatible with Dreamweaver CC
try recreating the users configuration folder as outlined in step 12 of the Adobe troubleshooting guide:
then install all extension from the extension manager, open Dreamweaver, then close it.
in install the Deprecated server behaviors extension, open Dreamweaver, then close it
install Data Bridge, then open DW to start the WebAssist installer, restart DW after it finishes