Phone crashes at show extenral Login UI - Ads wont work - No Play Service Connection

PROJECt.Build.cs:

Android-Manifest.xml:

Android-Engine:

Ingame-App-Purchase:

Hey i packaged my project and uploaded it in my internal tests. Everything works fine but when i press on my Button where the user can purchase something the Google Play Service Icon pops up it tries to get a Connection and then it closes.

My question is why does the Google Play Service is not working and why does my phone crash. Is anything wrong with my setup?

---------Here is everything that might be helpful for this question---------

APK-PACKAGING-ANDROID:

BUILD-ANDROID:

→ I package it for example for ETC1a then i start Android Studio and make an AAB (Android App Bundle) - just saying.

ADVANCED-APK-PACKAGING:

Google-Play-Services:

-My ads wont work and also my Ingame-Purchases dont work.
The Games APP ID is the ID from Google Play Developer Console - In the Tab Play Service Tab the 12 Digit number.
The licence is fine everything should be fine here.

PROJECT.Build.cs:

Okay sorry missed Android-Engine and Ingame-App-Purchase because this forum is bugging a little bit.

Android-Engine:

307723-screenshot-8.png

Ingame-App-Purchase:


Also i followed this instruction : Integrate Google Play Services with Blueprint - Community Content, Tools and Tutorials - Unreal Engine Forums

But at the point where it comes to OAuth 2.0 keys, my mind, i dont get it what happens there. So i skipped this maybe thats why my ads wont work and also my Connection to Google Play Service wont work with Show External Login UI. Or it basically wont work because i am testing my app through internal tests, because google checks my app the third time which takes around 2 weeks and i published 4 other versions so i am basically fuck if this is the case because they need to check 4 new versions, THANKS GOOGLE.

I hope i can get help because its really frustrating.

I have the problem with Unreal Engine 5.1 . It generates no androidengine.ini and show external login ui is causing a crash on android

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