I have had this problem for years now. I used to make good money with adsense. One day adsense changed their coding that you implement, and the ads wouldn't show up ever since. I wrote support a bunch of times, but they never get back to me. I can't find any decent alternative. I've been using bidvertiser, and over the past 8 months I haven't even accumulated $1 I really want to go back to adsense, but I just can't get the ads to show up.
If you are sure that you/site are not banned from Adsense, then try posting your question on google forum here - http://productforums.google.com/forum/#!forum/adsense
Hey well I don't have the adsense code on my website cause it just shows a blank space. Should I put it back on? I can't seem to post threads or replies through firefox with the new setup of digital point. Have to do it through Chrome. Anyway to fix that?
Check the page and website. If it has some adsense restricted words on it then adsense will not display. Adsense updated their code and if your site is not banned and a page on your site has words like sex, boobs or maybe breasts in it, adsense will not display. Hope it helps.