Hi Nadia,

You have a problem with missing menus and Tool Sets palette, which has repeatedly been discussed at the Forum.

At first you need to try this:

https://knowledge.autodesk.com/support/autocad-for-mac/troubleshooting/caas/sfdcarticles/sfdcarticle...

You only need to replace the paths specified in the article in accordance with your AutoCAD version.

I'd recommend you to start with AutoCAD reinstallation - at first clean uninstall  AutoCAD, than install it again. If you have latest OS X version - El Capitan - you need to install all service packs before using AutoCAD.

You can also look here:

http://forums.autodesk.com/t5/autocad-for-mac-general/no-menus-in-top-bar-and-no-drawing-panel/td-p/...

Again you need to substitute 2015 version with 2014.

Maxim