Crash reports: PollRequest NullPointerException

[bramley-stride]

We currently don't have many users using chat, but have noticed an uptick in automatic crash reports from this PollRequest error:

java.lang.NullPointerException: Attempt to read from field 'int c6.l.a' on a null object reference
	at com.brightpattern.bpcontactcenter.PollRequest$runObservation$2.onErrorResponse()(PollRequest.java:90)
	at com.android.volley.Request.deliverError()(Request.java:652)
	at com.android.volley.ExecutorDelivery$ResponseDeliveryRunnable.run()(ExecutorDelivery.java:104)
	at android.os.Handler.handleCallback()(Handler.java:938)
	at android.os.Handler.dispatchMessage()(Handler.java:99)
	at android.os.Looper.loop()(Looper.java:246)
	at android.app.ActivityThread.main()(ActivityThread.java:8633)
	at java.lang.reflect.Method.invoke()(Method.java:-2)
	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run()(RuntimeInit.java:602)
	at com.android.internal.os.ZygoteInit.main()(ZygoteInit.java:1130)

We haven't reproduced it

[ALobastov]

Need full log showing messages before and after exception.