Problemas com host estou aflito mesmo.

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import org.json.*;


public class Dados_Congregacao {

    BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));

//hj
    public List<Congregacao> Buscar_Igrejas_Proximas(String Email, String Cell) throws Exception {
        List<Congregacao> lista = new ArrayList<>();
        JsonObject user = new JsonObject();

     //   user.put("latitude", -19.49682827);
      //  user.put("longitude", 33.38936471);
        Links congregacao_link = new Links();
        URL myURL;
        myURL = new URL(congregacao_link.getCongregacao());
        HttpURLConnection myURLConnection = (HttpURLConnection) myURL.openConnection();
        myURLConnection.setRequestMethod("POST");
        myURLConnection.setDoOutput(true);
        myURLConnection.setDoInput(true);
        //  System.out.println("GET <GETITEMS> dados : " + user.toString());
        myURLConnection.connect();

        OutputStream os = myURLConnection.getOutputStream();
        DataOutputStream wr = new DataOutputStream(myURLConnection.getOutputStream());
        String param = "Congregacao_coordenadas=" + URLEncoder.encode(user.toString(), "UTF-8");
        wr.write(param.getBytes());
        wr.flush();
        wr.close();
        BufferedReader reader = new BufferedReader(new InputStreamReader(myURLConnection.getInputStream()));
        String inputLine, JSON_all = "";

        while ((inputLine = reader.readLine()) != null) {

            JSON_all = JSON_all + inputLine;
        }//Toast.makeText(context,JSON_all,Toast.LENGTH_LONG).show();
        System.out.println("RESPOSTA JSON" + JSON_all);
        reader.close();

        if (JSON_all.length() > 0) {
            
        
        
            JsonParser  parse = new JsonParser();
          
            Object objecto = parse.parse(JSON_all);
            JsonArray jsonArray = (JsonArray) objecto;

            int contador = 0;
            while (contador < jsonArray.size()) {

                Congregacao congregacao = new Congregacao();
                JsonObject jsonObject = (JsonObject) jsonArray.get(contador);

                congregacao.setId(Integer.parseInt(jsonObject.get("id").toString()));
                congregacao.setNome_congregacao(jsonObject.get("nome_congregacao").toString());
                congregacao.setNome_lider(jsonObject.get("nome_lider").toString());
                congregacao.setProvincia(jsonObject.get("provincia").toString());
                congregacao.setDistrito(jsonObject.get("distrito").toString());
                congregacao.setContacto(jsonObject.get("contacto").toString());

                congregacao.setLatitude(jsonObject.get("latitude").toString());

                congregacao.setLongitude(jsonObject.get("longitude").toString());
                congregacao.setFoto(jsonObject.get("foto").toString());
                congregacao.setDescricao(jsonObject.get("descricao").toString());

                lista.add(congregacao);
                contador++;
            }
  
        }

        return lista;
    }
}