I don't know the steps. I don't know what's causing it.
I only know that it's related to ads because of the stack-trace, and that it seems it happened in the past.
Affected Android versions: from 5 to 10 (including).
Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.lb.app_manager/com.google.android.gms.ads.AdActivity}: android.util.AndroidRuntimeException: requestFeature() must be called before adding content
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2702)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2767)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5951)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
Caused by android.util.AndroidRuntimeException: requestFeature() must be called before adding content
at com.android.internal.policy.impl.PhoneWindow.requestFeature(PhoneWindow.java:359)
at android.app.Activity.requestWindowFeature(Activity.java:3785)
at com.google.android.gms.ads.internal.overlay.x.d(:com.google.android.gms.policy_ads_fdr_dynamite@241199802@241199801000.618989241.618989241:22)
at
com.google.android.gms.ads.internal.overlay.client.a.bS(:com.google.android.gms.policy_ads_fdr_dynamite@241199802@241199801000.618989241.618989241:196)
at m.amg.onTransact(:com.google.android.gms.policy_ads_fdr_dynamite@241199802@241199801000.618989241.618989241:21)
at android.os.Binder.transact(Binder.java:380)
at com.google.android.gms.internal.ads.zzazo.zzdc(com.google.android.gms:play-services-ads-base@@23.1.0:2)
at com.google.android.gms.internal.ads.zzbun.zzl(com.google.android.gms:play-services-ads-lite@@23.1.0:3)
at com.google.android.gms.ads.AdActivity.onCreate(com.google.android.gms:play-services-ads-lite@@23.1.0:3)
at android.app.Activity.performCreate(Activity.java:6289)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2655)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2767)
at android.app.ActivityThread.access$900(ActivityThread.java:177)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1449)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5951)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1400)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)