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