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