D/AndroidRuntime: Shutting down VM
E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.dslr.camera.pixol, PID: 8021
    java.lang.RuntimeException: Unable to get provider com.google.android.gms.ads.MobileAdsInitProvider: java.lang.IllegalStateException: 
******************************************************************************
* The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers    *
* should follow the instructions here:                                       *
* https://googlemobileadssdk.page.link/admob-android-update-manifest         *
* to add a valid App ID inside the AndroidManifest.                          *
* Google Ad Manager publishers should follow instructions here:              *
* https://googlemobileadssdk.page.link/ad-manager-android-update-manifest.   *
******************************************************************************
    at android.app.ActivityThread.installProvider(ActivityThread.java:6988)
    at android.app.ActivityThread.installContentProviders(ActivityThread.java:6528)
    at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6445)
    at android.app.ActivityThread.access$1300(ActivityThread.java:219)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1859)
    at android.os.Handler.dispatchMessage(Handler.java:107)
    at android.os.Looper.loop(Looper.java:214)
    at android.app.ActivityThread.main(ActivityThread.java:7356)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
 Caused by: java.lang.IllegalStateException: 
******************************************************************************
* The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers    *
* should follow the instructions here:                                       *
* https://googlemobileadssdk.page.link/admob-android-update-manifest         *
* to add a valid App ID inside the AndroidManifest.                          *
* Google Ad Manager publishers should follow instructions here:              *
* https://googlemobileadssdk.page.link/ad-manager-android-update-manifest.   *
******************************************************************************
    at com.google.android.gms.internal.ads.zzxw.attachInfo(com.google.android.gms:play-services-ads-lite@@18.3.0:27)
    at com.google.android.gms.ads.MobileAdsInitProvider.attachInfo(com.google.android.gms:play-services-ads-lite@@18.3.0:3)
    at android.app.ActivityThread.installProvider(ActivityThread.java:6983)
        ... 10 more
I/Process: Sending signal. PID: 8021 SIG: 9 Process 8021 terminated.
compileSdkVersion 29
flavorDimensions "default"
buildToolsVersion "29.0.2"
defaultConfig {
    minSdkVersion 21
    targetSdkVersion 29
    multiDexEnabled true
i can't understand where is the problem, compile is ok and when i try to run the app i get crash and app exit. what i can do, please help me Thanks