The first 2 screen shots are errors from another vendors extension.
We do not have an extension named easy rotator, that is from another company.
for the Memento error:
Go to WebAssist -> Preferences in the Memento section Set the Show in dreamweaver option to Never.
In the RSS Section, check the option to disable all RSS Feeds and Check For Updates only when Memento opens.
Then go to Window -> Work Space layout -> Reset '<your layout name>'
and Delete the Dreamweaver Cache file from the users configuration folder: