Plugin crashes whole App

[Sunny41]

Hi there.
We have our App in production since october last year and we use this plugin for our shop website (www.loesdau.de).
Since then, 2% of the users on android cause the app to crash with this plugin.
I dont know, what they do to cause that.
But I happen to have the stacktraces from google play console, if that helps.

1. java.lang.IllegalArgumentException:
   at android.view.WindowManagerGlobal.findViewLocked (WindowManagerGlobal.java:597)
   at android.view.WindowManagerGlobal.removeView (WindowManagerGlobal.java:489)
   at android.view.WindowManagerImpl.removeViewImmediate (WindowManagerImpl.java:172)
   at android.app.Dialog.dismissDialog (Dialog.java:602)
   at android.app.Dialog.dismiss (Dialog.java:582)
   at com.initialxy.cordova.themeablebrowser.ThemeableBrowser$5$1.onPageFinished (ThemeableBrowser.java:399)
   at Z80.b (chromium-TrichromeWebViewGoogle.aab-stable-432409333:2)
   at j6.handleMessage (chromium-TrichromeWebViewGoogle.aab-stable-432409333:64)
   at android.os.Handler.dispatchMessage (Handler.java:110)
   at android.os.Looper.loop (Looper.java:219)
   at android.app.ActivityThread.main (ActivityThread.java:8347)
   at java.lang.reflect.Method.invoke (Native Method)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:513)
   at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1055)

2. java.lang.NullPointerException:
   at com.initialxy.cordova.themeablebrowser.ThemeableBrowser$ThemeableBrowserClient.onPageStarted (ThemeableBrowser.java:1293)
   at Z80.c (chromium-TrichromeWebViewGoogle.aab-stable-432409333:2)
   at j6.handleMessage (chromium-TrichromeWebViewGoogle.aab-stable-432409333:160)
   at android.os.Handler.dispatchMessage (Handler.java:107)
   at android.os.Looper.loop (Looper.java:213)
   at android.app.ActivityThread.main (ActivityThread.java:8178)
   at java.lang.reflect.Method.invoke (Native Method)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:513)
   at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1101)

3. java.lang.NullPointerException:
   at com.initialxy.cordova.themeablebrowser.ThemeableBrowser$6$4**.onClick (ThemeableBrowser.java:670)**
   at android.view.View.performClick (View.java:7862)
   at android.widget.TextView.performClick (TextView.java:15004)
   at android.view.View.performClickInternal (View.java:7831)
   at android.view.View.access$3600 (View.java:879)
   at android.view.View$PerformClick.run (View.java:29359)
   at android.os.Handler.handleCallback (Handler.java:883)
   at android.os.Handler.dispatchMessage (Handler.java:100)
   at android.os.Looper.loop (Looper.java:237)
   at android.app.ActivityThread.main (ActivityThread.java:8167)
   at java.lang.reflect.Method.invoke (Native Method)
   at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:496)
   at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:1100)

These three errors happen on Android 9, 10 and 11.
Do you have any suggestions what might happen?
I am sure that the shop itself works in a normal browser...