Insert Google adsense ad to my website

I am looking for a skilled freelancer to help me insert Google Adsense ads onto my website. It worked earlier, now the ad does not appear. When I placed auto insert, it shows ad insert is controlled by myself. I used Ad. insert plug-in but it shows the bank ad area on webpage but no Google image appears. I would like the work to be completed within less than 1-2 days, earlier one freelancer did it for a couple of hours.