Read this article for more information: https://bf4stats.userecho.com/topic/533843-why-the...

Short story; the app is now available at https://play.google.com/store/apps/details?id=com....

Sorry for late reply. The app was removed by Google because of alleged violation of a policy. I am going to post a more detailed description shortly. The app will be republished next week. 

Are you using the newest version of the app? This issue should be resolved in latest version available at Play store.

What is your BF4 nickname?
What device are you using?