Adsence account canceled



I monetized my applications with Adsence, everything was going well until after four months I received an email notifying my Adsence account cancellation due to a violation of its Terms of Service, in addition they say they do not give more information about it to protect your system .
I have read the Adsence policies to find a violation but I have not detected. Can someone help me please.
Sorry for my English.


How you put your Ads ?
Does they popup suddenly when exit ? Does the first screen was a ad ?
Was the ad closeable ?


The ads showed up after a minute. I think that is not the problem, because the applications I removed the SDK and then sent a resource to Adsence and they replied that they still could not readmit my account.