Did you just recently install the Creative cloud update?
When you install the creative cloud update, it over writes the menus.
you need to disable the extensions in the extension manager, then re enable to recreate the menus.
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.