If you are getting notifications from EnumeratorMethod, then your Mac is infected with adware. EnumeratorMethod is adware for Mac.
EnumeratorMethod changes setting in your Mac. First, EnumeratorMethod installs a browser extension in your browser. Then, after EnumeratorMethod 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.