Comment on WordPress AdSense Themes by SEO Dave.

Google AdSense Ads AdSense banned: search Google for AdSense Banned and find a site that checks if your domain is AdSense banned.

Or broken AdSense code. Read the info on the main Stallion Theme option page where you added your AdSense pub-number and check if you copy and pasted a space before or after the pub-number which would break the ad code.

Without the site URL no idea beyond the above.

Glad you fixed the widget issue.