Are you being redirected and getting popup ads from the fake website maxcooper.club? If so, an adware has penetrated into your system which will attempt to commandeer your browser search and homepage.
Once you hit “Allow” to its push notification, unwanted ads will start showing on your screen. These ads are in the form of fake software updates, shopping coupons, online games and the likes. Clicking them will send you to malicious websites to get money from you or infect your computer further. It may also prevent you from changing your settings back.
Maxcooper.club is usually installed through bundled software without you knowing. You have to remove it immediately before it further damages your computer.