Check the admob Sdk what you are using in your Xcode. Go to https://developers.google.com/mobile-ads-sdk/download#downloadios and check is there any new sdk. if find new one then download it and replace the old one. It worked for me.
Blogger is good for individual developer who don't have the source url. GO to www.blogger.com and create one page then give that "blogger page url" as your source url while pushing app to the app store.