When I do minifiyEnabled true and Add Progurad leads to Crash the App without it working fine

Question

When I add proguard rules it crashes....well razorpay proguard works fine only the case with ExamSelectionActivity it crashes only when... I need to set proguard rules for shrinkResources true....

my proguard rules here:

 -keepattributes LineNumberTable,SourceFile
-renamesourcefileattribute SourceFile

-keepclassmembers class * {
    @android.webkit.JavascriptInterface <methods>;
}

-keepattributes JavascriptInterface
-keepattributes *Annotation*

-dontwarn com.razorpay.**
-keep class com.razorpay.** {*;}

-optimizations !method/inlining/*

-keepclasseswithmembers class * {
  public void onPayment*(...);
}

-keep class com.examlounge.examloungeapp.view.ExamSelectionActivity

My progaurd rules

I have already the added class in proguard which its showing error

My error

2022-04-10 22:08:44.999 24493-24493/com.examlounge.examloungeapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.examlounge.examloungeapp, PID: 24493
java.lang.NullPointerException: it1 must not be null
    at com.examlounge.examloungeapp.view.ExamSelectionActivity.c0(SourceFile:143)
    at com.examlounge.examloungeapp.view.ExamSelectionActivity.S(Unknown Source:0)
    at f4.b1.d(Unknown Source:4)
    at androidx.lifecycle.LiveData.c(SourceFile:133)
    at androidx.lifecycle.LiveData.d(SourceFile:151)
    at androidx.lifecycle.LiveData.m(SourceFile:309)
    at androidx.lifecycle.v.m(SourceFile:50)
    at h4.g$c.w(SourceFile:124)
    at yc.a.l(SourceFile:33)
    at pd.v0.run(SourceFile:106)
    at android.os.Handler.handleCallback(Handler.java:790)
    at android.os.Handler.dispatchMessage(Handler.java:99)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:7025)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)

When I do minifyEnabled false its work fine