Crash Info:
BOARD=c72c_37t
BOOTLOADER=unknown
BRAND=wtk
CPU_ABI=arm64-v8a
CPU_ABI2=
CW_MODEL=mtk.6735.c72c
DEVICE=c72
DISPLAY=C72C_MT6737T_V1.1_AS2_GITd1e22dc_20181219
FINGERPRINT=wtk/c72c/c72:6.0/MRA58K/1545222194:user/release-keys
HARDWARE=mt6735
HARDWAREVERSION=unknown
HOST=chainway-PowerEdge-R730
ID=MRA58K
IS_DEBUGGABLE=false
MANUFACTURER=wtk
MODEL=C72
PRODUCT=c72c
RADIO=unknown
SERIAL=HC720C190600226
SUPPORTED_32_BIT_ABIS=[Ljava.lang.String;@fe158f2
SUPPORTED_64_BIT_ABIS=[Ljava.lang.String;@938cb43
SUPPORTED_ABIS=[Ljava.lang.String;@3ef25c0
TAG=Build
TAGS=release-keys
TIME=1545223275000
TYPE=user
UNKNOWN=unknown
USER=hejiang
VERSION_CODE=18
VERSION_NAME=0.1.8-uat
customModelNumber=/data/model

d.a.n.b: The exception was not handled due to missing onError handler in the subscribe() method call. Further reading: https://github.com/ReactiveX/RxJava/wiki/Error-Handling | java.lang.RuntimeException: src is null
	at d.a.p.b.a$g.a(:1)
	at d.a.p.d.c.a()
	at c.n.a.h.a(:3)
	at d.a.p.e.b.j$a.a()
	at d.a.p.e.b.j$a.run(:2)
	at d.a.l.b.b$b.run()
	at android.os.Handler.handleCallback(Handler.java:815)
	at android.os.Handler.dispatchMessage(Handler.java:104)
	at android.os.Looper.loop(Looper.java:207)
	at android.app.ActivityThread.main(ActivityThread.java:5778)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.RuntimeException: src is null
	at c.g.a.a.e.a.h.a(:7)
	at c.g.a.a.e.a.g.a(lambda)
	at d.a.p.e.b.c.b()
	at d.a.e.a()
	at d.a.p.e.b.e.b()
	at d.a.e.a()
	at d.a.p.e.b.n$b.run()
	at d.a.k$a.run()
	at d.a.p.g.i.run()
	at d.a.p.g.i.call()
	at java.util.concurrent.FutureTask.run(FutureTask.java:237)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
	at java.lang.Thread.run(Thread.java:818)