I was having issues with one of my website. The issue really did not relate to other than google adsense. The advertising unit of google. A website owner can sign up with google as a publisher and display ads on their website. Google gets these ads from companies of any kind or else from websites. If you own a website and want to advertise with them you sign up with google adwords, if you want to display ads on your website and to make some extra money you sign up with adsense. they are both google’s advertising arm.