''net::ERR_unknown_url_scheme'' en webview android studio

hola
primero no soy bueno en java, estoy tratando de configurar un WebView en Android Studio con la ayuda de tutoriales de YouTube. al final pegué el enlace de mi sitio de WordPress. el problema es que tengo un código en mi sitio de WordPress que permite hacer una llamada telefónica desde el navegador Google Chrome en un smartphone, pero en el WebView aparece este mensaje:

net::ERR_UNKNOWN_URL_SCHEME

aquí está mi código:

MainActivity.java

import androidx.appcompat.app.AppCompatActivity; import android.content.Context; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.os.Bundle; import android.view.KeyEvent; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.webkit.WebSettings; import android.webkit.WebView; import android.webkit.WebViewClient; import android.widget.Button; import android.widget.RelativeLayout; public class MainActivity extends AppCompatActivity { WebView webView; RelativeLayout relativeLayout; Button btnNoInternetConnection; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // eliminar título requestWindowFeature(Window.FEATURE_NO_TITLE); getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); setContentView(R.layout.activity_main); webView = (WebView) findViewById(R.id.webView); // loadUrl webView.setWebViewClient(new WebViewClient()); btnNoInternetConnection = (Button) findViewById(R.id.btnNoConnection); relativeLayout = (RelativeLayout) findViewById(R.id.relativeLayout); checkConnection(); WebSettings webSettings = webView.getSettings(); webSettings.setJavaScriptEnabled(true); // webSettings.setDomStorageEnabled(true); // webSettings.setUseWideViewPort(true); webSettings.setAllowContentAccess(true); webSettings.setAllowFileAccess(true); webSettings.setAppCacheEnabled(true); btnNoInternetConnection.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { checkConnection(); } }); } @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode == KeyEvent.KEYCODE_BACK && webView.canGoBack()){ webView.goBack(); return true; } return super.onKeyDown(keyCode, event); } public void checkConnection(){ ConnectivityManager connectivityManager = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo wifi = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI); NetworkInfo mobileNetwork = connectivityManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE); if (wifi.isConnected()){ webView.loadUrl("https://www.groupe-alakssa.ma/"); webView.setVisibility(View.VISIBLE); relativeLayout.setVisibility(View.GONE); } else if (mobileNetwork.isConnected()){ webView.loadUrl("https://www.groupe-alakssa.ma/"); webView.setVisibility(View.VISIBLE); relativeLayout.setVisibility(View.GONE); } else { webView.setVisibility(View.GONE); relativeLayout.setVisibility(View.VISIBLE); } } } 

Mi Androidmanifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.akssa.groupe"> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="Android.permission.CALL_PHONE"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" /> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name="com.akssa.groupe.SplashScreen"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="com.akssa.groupe.MainActivity"> </activity> </application> </manifest>