Android webview geoposition database failed to open

I have website using javascript geolocation api and want it to open in a webview. I set up these permissions in the manifest file:

<uses-permission android:name="android.permission.ACCESS_GPS" />
<uses-permission android:name="android.permission.ACCESS_ASSISTED_GPS" />
<uses-permission android:name="android.permission.ACCESS_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

In my activity, I also set webview settings:

webview.getSettings().setDatabaseEnabled(true);
webview.getSettings().setDomStorageEnabled(true);
webview.getSettings().setGeolocationDatabasePath("/data/data/com.my.app/databases");
webview.getSettings().setGeolocationEnabled(true);

And I also handled javascript geolocation dialog:

webview.setWebChromeClient(new WebChromeClient(){
    @Override
    public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
        callback.invoke(origin, true, false);
    }
});

Geolocation itself is working, but I am not able to cache geoposition into the database. It should be doing it by itself into CachedGeoposition.db, but when I start the webview, i get this strange SQLite error:

E/SQLiteLog(22653): (14) cannot open file at line 30174 of [00bb9c9ce4]
E/SQLiteLog(22653): (14) os_unix.c:30174: (2) open(/CachedGeoposition.db) -
D/WebKit  (22653): ERROR:
D/WebKit  (22653): SQLite database failed to load from /CachedGeoposition.db
D/WebKit  (22653): Cause - unable to open database file
D/WebKit  (22653):
D/WebKit  (22653): external/webkit/Source/WebCore/platform/sql/SQLiteDatabase.cp
p(71) : bool WebCore::SQLiteDatabase::open(const WTF::String&, bool)

When I check existence of CachedGeoposition.db file in File Explorer, it is always there, and permissions of the db are set to -rw-------.

Did I miss something in settings what could cause database not to open correctly? I'm new to Android and trying to find solution for 2 days now. Any help would be greatly appreciated. Thank you.