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Attempt to invoke virtual method 'byte[] java.lang.String.getBytes()' on a null object reference
ava.lang.NullPointerException: Attempt to invoke virtual method 'byte[] 
java.lang.String.getBytes()' on a null object reference	at android.util.Base64.decode(Base64.java:118)	at com.google.firebase.iid.g.f(Unknown Source)	at com.google.firebase.iid.g.c(Unknown Source)	at com.google.firebase.iid.d.a(Unknown Source)	at com.google.firebase.iid.d.c(Unknown Source)	at com.google.firebase.iid.d.b(Unknown Source)	at com.google.firebase.iid.FirebaseInstanceId.a(Unknown Source)	at com.google.firebase.iid.FirebaseInstanceId.f(Unknown Source)	at com.google.firebase.iid.FirebaseInstanceIdService.a(Unknown Source)	at com.google.firebase.iid.FirebaseInstanceIdService.b(Unknown Source)	at com.google.firebase.iid.b$2.run(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)	at java.lang.Thread.run(Thread.java:818)