Please be aware of our business hours, I am online offering support from 9AM to 5pm Eastern Daylight Time. Your question was initially posted outside of those hours.
for the error you are getting:
Delete the Dreamweaver Cache file from the users configuration folder:
for the other issues, can you please provide some more details on your set up:
What is your OS?
What Version of Dreamweaver?
What other extensions (including version numbers) do you have installed?