Fatal Exception: android.app.RemoteServiceException Bad notification posted from package Couldn't expand RemoteViews

ANDROID FIREBASE CRASHLYTICS ERROR LOG:

Fatal Exception: android.app.RemoteServiceException
Bad notification posted from package com.elitech.offers.coupons.deals: Couldn't expand RemoteViews for: StatusBarNotification(pkg=com.elitech.offers.coupons.deals user=UserHandle{0} id=0 tag=null score=10: Notification(pri=1 contentView=com.elitech.offers.coupons.deals/0x109007e vibrate=default sound=default defaults=0xffffffff flags=0x11 kind=[null]))
android.app.ActivityThread$H.handleMessage (ActivityThread.java:1460)
android.os.Handler.dispatchMessage (Handler.java:102)
android.os.Looper.loop (Looper.java:149)
android.app.ActivityThread.main (ActivityThread.java:5257)
java.lang.reflect.Method.invokeNative (Method.java)
java.lang.reflect.Method.invoke (Method.java:515)
com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run (ZygoteInit.java:793)
com.android.internal.os.ZygoteInit.main (ZygoteInit.java:609)
dalvik.system.NativeStart.main (NativeStart.java)