Unity Project - Android Studio build crash on google sign in

Hello Everyone,

My game has playgames for unity plugin integrated.
I can build a signed apk using unity without any problem. and the game is working just fine. you can find the link here :
https://play.google.com/store/apps/details?id=play.TheEgg

but Now I wanted to use Android Studio to make some changes in the game before building.

* I managed to export my game to Android Studio
* I managed to build back a signed apk using Android Studio

but the generated apk crashes everytime I try to signinto google.
here is the Android Studio logcat just before and after the crash :

Code (CSharp):

1. 11-12 15:07:20.659 826-1686/? W/ActivityManager:   Force finishing activity play.TheEgg/com.google.firebase.MessagingUnityPlayerActivity
2. 11-12 15:07:20.999 826-913/? D/ISSUE_DEBUG: InputChannelName : 46e299d Application Error: play.TheEgg
3. 11-12 15:07:21.209 826-913/? D/StatusBarManagerService: manageDisableList userId=0 what=0x0 pkg=Window{46e299d u0 d0 Application Error: play.TheEgg}
4. 11-12 15:07:21.289 826-912/? W/ActivityManager: Activity pause timeout for ActivityRecord{8491214 u0 play.TheEgg/com.google.firebase.MessagingUnityPlayerActivity t540 f}
5. 11-12 15:07:21.299 826-913/? V/WindowStateAnimator: Finishing drawing window Window{46e299d u0 d0 Application Error: play.TheEgg}: mDrawState=DRAW_PENDING
6. 11-12 15:07:21.449 826-913/? V/WindowStateAnimator: Finishing drawing window Window{46e299d u0 d0 Application Error: play.TheEgg}: mDrawState=HAS_DRAWN
7. 11-12 15:07:21.569 826-912/? V/MARsPolicyManager: CurrentImportantPackage play.TheEgg -in latest protected packageslist for SPCM!
8. 11-12 15:07:22.399 1464-1464/? W/ResourcesManager: getTopLevelResources: /data/app/play.TheEgg-1/base.apk / 1.0 running in com.android.systemui rsrc of package null
9. 11-12 15:07:28.479 826-1690/? I/WindowState: WIN DEATH: Window{1ff2a74 u0 d0 play.TheEgg/com.google.firebase.MessagingUnityPlayerActivity}
10. 11-12 15:07:28.479 826-1690/? W/WindowManager: Force-removing child win Window{51e79e0 u0 d0 SurfaceView} from container Window{1ff2a74 u0 d0 play.TheEgg/com.google.firebase.MessagingUnityPlayerActivity}
11. 11-12 15:07:28.479 826-2194/? I/ActivityManager: Process play.TheEgg (pid 3945)(adj 11) has died(228,167)
12. 11-12 15:07:28.489 826-2194/? D/ActivityManager: isAutoRunBlockedApp:: play.TheEgg, Auto Run ON

my game also has the latest version of firebase sdk integrated.

I hope I can find some help.
Thank You

 

am I the only one ever face this problem... ?
this is strange