If you are getting notifications from OperativeToolView, then your Mac is infected with adware. OperativeToolView is adware for Mac.
OperativeToolView changes setting in your Mac. First, OperativeToolView installs a browser extension in your browser. Then, after OperativeToolView hijacks your browser, it modifies settings in the browser. For example, it changes the default home page, modifies search results, and displays unwanted pop-ups in your browser.