Null pointer exception in c4.<init> on Android 10 Oppo devices

[kreativityapps]

Using flutter_pollfish 4.1.3 several crash reports can be seen in crashlytics.
It occurs on Android 10 and Oppo devices.
Couldn't reproduce it locally, I hope the logs help.

Fatal Exception: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.content.ComponentName.getClassName()' on a null object reference
at android.webkit.WebView.(WebView.java:449)
at android.webkit.WebView.(WebView.java:366)
at android.webkit.WebView.(WebView.java:349)
at android.webkit.WebView.(WebView.java:336)
at android.webkit.WebView.(WebView.java:326)
at com.pollfish.internal.c4.(c4.java)
at com.pollfish.internal.t5.c(t5.java:7)
at com.pollfish.internal.u5.invoke(u5.java:6)
at com.pollfish.internal.c0.a(c0.java)
at com.pollfish.internal.c0$$InternalSyntheticLambda$0$4403c88533a63ccabaefcb54da7cd2aa6fee30cd5d9f7add6af9587efba665b5$0.run(c0.java:2)
at android.os.Handler.handleCallback(Handler.java:883)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loop(Looper.java:240)
at android.app.ActivityThread.main(ActivityThread.java:7829)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:512)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1027)