Xamarin application crashes on startup on release mode

as I said in the title, my application simply works fine in debug mode, but when I extract a release mode apk it just crashes on startup.

I have tried every possible fix I could found on google and none worked, that's what I tried so far:-

1. Setting linking to None / SDK Assemblies Only.
2. Setting code shrinker to None / ProGaurd.
3. Enabling support architectures armeabi-v7a and arm64-v8a.
4. Adding Internet permission.
5. Cleaning the whole solution and rebuilding everything.
6. Setting projects assemblies (PCL & Android & IOS) to lowercase names fails the archiving.
7. Enabling the Use Shared Runtime fails the archiving.
8. Enabling the Bundle assemblies into native code.
9. Uninstalling the Mono Shared Runtime from the device.

I also cleaned the solution and did a rebuild after each of these tries...

Nothing worked...What am I missing here ?!Thanks in advance ^_^