[Plugin: Best Google Adsense] Id adsense = "xxx-000000000000000"

I don’t know why but all plug’in I’ve tried resete my id adsense to a “xxx-000000000000000” so i post it here ,Do you have any idea about the cause of this issue, the ad is visual on the site but i checked the source and found that the id is “xxx-000000000000000” and I’ve tried like 3 plug’in …

http://wordpress.org/extend/plugins/best-google-adsense/