If you post your phone number then I can call you and help you with this in a screen sharing session.
On mac the folder is:
Libary/Application Support/Adobe/Dreamweaver [version]/en_US/Configuration
Just delete that entire folder while Dreamweaver is closed and then open Dreamweaver.
That will re-create a fresh version of that folder which will be stripped of any extensions you have installed. Then re-install the ones you want.
If you still have issues, then post your phone number and I'll do screen sharing with you to debug and fix whatever issues remain.