[Xposed Framework Modules] KBeng:
Unfortunately it is still crashing for me after a few seconds using 6.31 on 2.18.380. But the unofficial build 6.13 in this topic working fine for me (LOS 14.1, Xposed v89).

--------- beginning of main
02-28 23:54:56.349 2397 2397 I ServiceManager: Waiting for service AtCmdFwd...
02-28 23:54:57.350 2397 2397 I ServiceManager: Waiting for service AtCmdFwd...
--------- beginning of system
02-28 23:54:58.237 3171 3603 I ActivityManager: START u0 {flg=0x14000000 cmp=com.whatsapp/.Conversation (has extras)} from uid 10097 on display 0
02-28 23:54:58.329 5817 5817 I AppCompatViewInflater: app:theme is now deprecated. Please move to using android:theme instead.
02-28 23:54:58.351 2397 2397 I ServiceManager: Waiting for service AtCmdFwd...
02-28 23:54:58.385 3171 3181 I art : Background partial concurrent mark sweep GC freed 8689(1081KB) AllocSpace objects, 15(280KB) LOS objects, 33% free, 13MB/19MB, paused 1.945ms total 108.113ms
02-28 23:54:58.464 5817 5817 E Xposed : java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.util.HashSet.contains(java.lang.Object)' on a null object reference
02-28 23:54:58.464 5817 5817 E Xposed :	at com.suraj.waext.ExtModule$10.beforeHookedMethod(ExtModule.java:631)
02-28 23:54:58.464 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:340)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.Activity.onResume(<Xposed>)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.support.v4.app.h.onResume(:230918)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.whatsapp.DialogToastActivity.onResume(:232753)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.whatsapp.awn.onResume(:233174)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.whatsapp.Conversation.onResume(:255939)
02-28 23:54:58.464 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.invokeOriginalMethodNative(Native Method)
02-28 23:54:58.464 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:360)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.whatsapp.Conversation.onResume(<Xposed>)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1270)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.Activity.performResume(Activity.java:6788)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3431)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3494)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2757)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread.-wrap12(ActivityThread.java)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1496)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.os.Handler.dispatchMessage(Handler.java:102)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.os.Looper.loop(Looper.java:154)
02-28 23:54:58.464 5817 5817 E Xposed :	at android.app.ActivityThread.main(ActivityThread.java:6186)
02-28 23:54:58.464 5817 5817 E Xposed :	at java.lang.reflect.Method.invoke(Native Method)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
02-28 23:54:58.464 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
02-28 23:54:58.464 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:107)
02-28 23:54:58.599 5817 5822 I art : Method exceeds compiler instruction limit: 27058 in int com.whatsapp.emoji.EmojiDescriptor.getDescriptor(com.whatsapp.emoji.EmojiDescriptor$b)
02-28 23:54:58.646 5817 5817 E Xposed : java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.util.HashSet.contains(java.lang.Object)' on a null object reference
02-28 23:54:58.646 5817 5817 E Xposed :	at com.suraj.waext.ExtModule$6.beforeHookedMethod(ExtModule.java:371)
02-28 23:54:58.646 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:340)
02-28 23:54:58.646 5817 5817 E Xposed :	at com.whatsapp.Conversation.onCreateOptionsMenu(<Xposed>)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.app.Activity.onCreatePanelMenu(Activity.java:3146)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.support.v4.app.h.onCreatePanelMenu(:230866)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.support.v7.view.i.onCreatePanelMenu(:12757)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.support.v7.app.f$a.onCreatePanelMenu(:139192)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.support.v7.view.i.onCreatePanelMenu(:12757)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.support.v7.app.l$1.run(:12007)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.os.Handler.handleCallback(Handler.java:751)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.os.Handler.dispatchMessage(Handler.java:95)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.os.Looper.loop(Looper.java:154)
02-28 23:54:58.646 5817 5817 E Xposed :	at android.app.ActivityThread.main(ActivityThread.java:6186)
02-28 23:54:58.646 5817 5817 E Xposed :	at java.lang.reflect.Method.invoke(Native Method)
02-28 23:54:58.646 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
02-28 23:54:58.646 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
02-28 23:54:58.646 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:107)
02-28 23:54:58.660 5817 5817 E Xposed : java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.util.HashSet.contains(java.lang.Object)' on a null object reference
02-28 23:54:58.660 5817 5817 E Xposed :	at com.suraj.waext.ExtModule$6.afterHookedMethod(ExtModule.java:415)
02-28 23:54:58.660 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.handleHookedMethod(XposedBridge.java:374)
02-28 23:54:58.660 5817 5817 E Xposed :	at com.whatsapp.Conversation.onCreateOptionsMenu(<Xposed>)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.app.Activity.onCreatePanelMenu(Activity.java:3146)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.support.v4.app.h.onCreatePanelMenu(:230866)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.support.v7.view.i.onCreatePanelMenu(:12757)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.support.v7.app.f$a.onCreatePanelMenu(:139192)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.support.v7.view.i.onCreatePanelMenu(:12757)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.support.v7.app.l$1.run(:12007)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.os.Handler.handleCallback(Handler.java:751)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.os.Handler.dispatchMessage(Handler.java:95)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.os.Looper.loop(Looper.java:154)
02-28 23:54:58.660 5817 5817 E Xposed :	at android.app.ActivityThread.main(ActivityThread.java:6186)
02-28 23:54:58.660 5817 5817 E Xposed :	at java.lang.reflect.Method.invoke(Native Method)
02-28 23:54:58.660 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:889)
02-28 23:54:58.660 5817 5817 E Xposed :	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:779)
02-28 23:54:58.660 5817 5817 E Xposed :	at de.robv.android.xposed.XposedBridge.main(XposedBridge.java:107)
02-28 23:54:58.717 3171 3283 I ActivityManager: Displayed com.whatsapp/.Conversation: +456ms
02-28 23:54:58.744 5817 5817 W IInputConnectionWrapper: finishComposingText on inactive InputConnection
02-28 23:54:58.774 5817 5817 E SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
02-28 23:54:58.774 5817 5817 E SpannableStringBuilder: SPAN_EXCLUSIVE_EXCLUSIVE spans cannot have a zero length
02-28 23:54:59.353 2397 2397 I ServiceManager: Waiting for service AtCmdFwd...
02-28 23:55:00.355 2397 2397 W Atfwd_Sendcmd: AtCmdFwd service not published, waiting... retryCnt : 4
--------- beginning of crash
02-28 23:55:02.267 5817 5956 E AndroidRuntime: FATAL EXCEPTION: Thread-12
02-28 23:55:02.267 5817 5956 E AndroidRuntime: Process: com.whatsapp, PID: 5817
02-28 23:55:02.267 5817 5956 E AndroidRuntime: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean java.util.AbstractCollection.addAll(java.util.Collection)' on a null object reference
02-28 23:55:02.267 5817 5956 E AndroidRuntime:	at com.suraj.waext.ExtModule$15.run(ExtModule.java:734)
02-28 23:55:02.268 3171 3604 W ActivityManager: Force finishing activity com.whatsapp/.Conversation
02-28 23:55:02.270 3171 5960 W DropBoxManagerService: Dropping: data_app_crash (397 > 0 bytes)
02-28 23:55:02.288 5817 5817 W GooglePlayServicesUtil: Google Play Store is missing.
02-28 23:55:02.324 5817 5817 W IInputConnectionWrapper: finishComposingText on inactive InputConnection