From the 25th of june two unrelated apps that are using ads started to have this NPE
java.lang.NullPointerException
at zo.a(SourceFile:172)
at aeh.a(SourceF
I was seeing the exact same issue with one of my apps since Jun 25th as well. You are right this is a Google issue, I think I have managed to resolve it by updating my Android Support Library to version 20 (I was using android-support-v4.jar) and my Google Play Services to version 17.
I am not sure which of the two revisions resolved this but it's been 24 hours and the Crash reports have stopped.
EDIT: Sorry this is still not resolved. But I got a response from the AdMod SDK team that they are looking into it. https://groups.google.com/forum/#!topic/google-admob-ads-sdk/DkjtCx_Zvn8