Today i got a mail from adsence i creat the ad unit may2015 But my site i stoped few month ago ....Now what i do ... Please help me....
You going to have to explain that some more. Does the site no longer exist? Did you get fully approved or not? This is not making a lot of sense.
All you have to do is to create an add and paste the code in some blog or website. Once it is alive, your adsense account will be fully activated and you can use it on all website
Given that we still have no idea what you are talking about, how do you expect us to answer this question?