stripe-android: IllegalStateException: PaymentConfiguration was not initialized

We have integrated an Stripe and it is running successfully. But in Crashlytics we are showing one crash related to stripe that we are not able to solve. The entire log of an error is as below

The line at which this crash pointing is CustomerSession.initCustomerSession to generate an EphemeralKey. And we have initialized the PaymentConfiguration before generating EphemeralKey. See this issues is not replicated to all users but to the few users.

Solution or cause for a crash would be appreciated

       at com.stripe.android.PaymentConfiguration.getInstance(PaymentConfiguration.java:56)
       at com.stripe.android.CustomerSession.initCustomerSession(CustomerSession.java:145)
       at com.stripe.android.CustomerSession.initCustomerSession(CustomerSession.java:155)
       at com.stripe.android.CustomerSession.initCustomerSession(CustomerSession.java:172)
       at com.*******.BillingInfoActivity.generateEphemeralKey(BillingInfoActivity.java:1731)
       at com.*******.BillingInfoActivity.checkForCustomerId(BillingInfoActivity.java:1676)
       at com.*******.BillingInfoActivity.onCreate(BillingInfoActivity.java:382)
       at android.app.Activity.performCreate(Activity.java:7458)
       at android.app.Activity.performCreate(Activity.java:7448)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1286)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3409)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3614)
       at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:86)
       at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:108)
       at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:68)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2199)
       at android.os.Handler.dispatchMessage(Handler.java:112)
       at android.os.Looper.loop(Looper.java:216)
       at android.app.ActivityThread.main(ActivityThread.java:7625)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:524)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:987)````