After SQLite my application stopped working

I'm developing an application and I needed to put the database SQLite , after I put it when I open the application it gives an error showing that the application stopped working, I asked my programming teacher he commented that it is a error that happens only at the time of onCreate of activity because the rest of the programming is right, it just is not creating onCreate ....

The code I think is giving error would be this part:

 protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_futebol_simples);

and my complete code with the database is this:

public class FutebolSimples extends AppCompatActivity {

    private ImageButton imgButton_play, imgButton_pause, imgButton_1, imgButton_2;
    private Button vermelho, amarelo;
    private TextView txt_valor1, txt_valor2;
    private EditText nomeTime1, nomeTime2;
    private int contador = 0;
    private int contador1 = 0;
    private Chronometer reloginho;
    long tempoPausado = 0;

    SQLiteDatabase db;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_futebol_simples);

        setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);

        imgButton_1 = (ImageButton) findViewById(R.id.imgButton_1);
        imgButton_2 = (ImageButton) findViewById(R.id.imgButton_2);
        imgButton_play = (ImageButton) findViewById(R.id.imgButton_play);
        imgButton_pause = (ImageButton) findViewById(R.id.imgButton_pause);
        reloginho = (Chronometer) findViewById(R.id.chronometer);
        txt_valor1 = (TextView) findViewById(R.id.txt_valor1);
        txt_valor2 = (TextView) findViewById(R.id.txt_valor2);
        nomeTime1 = (EditText) findViewById(R.id.lbl_time1);
        nomeTime2 = (EditText) findViewById(R.id.lbl_time2);
        vermelho = (Button) findViewById(R.id.btnvermelho);
        amarelo = (Button) findViewById(R.id.btnAmarelo);




        imgButton_1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                contador++;
                txt_valor1.setText(" " + contador);
                Toast.makeText(getApplicationContext(), "Goooool!!!", Toast.LENGTH_LONG).show();
            }
        });

        imgButton_2.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                contador1++;
                txt_valor2.setText(" " + contador1);
                Toast.makeText(getApplicationContext(), "Goooool!!!", Toast.LENGTH_LONG).show();
            }
        });

        imgButton_play.setEnabled(true);
        imgButton_pause.setEnabled(false);
        imgButton_1.setEnabled(false);
        imgButton_2.setEnabled(false);


        imgButton_play.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                imgButton_play.setEnabled(false);
                imgButton_pause.setEnabled(true);
                imgButton_1.setEnabled(true);
                imgButton_2.setEnabled(true);

                reloginho.setBase(SystemClock.elapsedRealtime());
                reloginho.start();
                reloginho.setBase(SystemClock.elapsedRealtime() + tempoPausado);
            }
        });

        imgButton_pause.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                imgButton_play.setEnabled(true);
                imgButton_pause.setEnabled(false);
                imgButton_1.setEnabled(false);
                imgButton_2.setEnabled(false);

                tempoPausado = reloginho.getBase();
                SystemClock.elapsedRealtime();
                reloginho.stop();

            }
        });

        db = openOrCreateDatabase("Resultado", Context.MODE_PRIVATE, null);
        db.execSQL("CREATE TABLE IF NOT EXISTS futebol (TimeOne VARCHAR, TimeTwo VARCHAR, FinalOne INT, FinalTwo INT);");

    }


    public void saveR (View view){

        if(txt_valor1.getText().toString().trim().length()==0 || txt_valor2.getText().toString().trim().length()==0 || nomeTime1.getText().toString().trim().length()==0 || nomeTime2.toString().trim().length()==0 || vermelho.getText().toString().trim().length()==0 || amarelo.getText().toString().trim().length()==0){

            Toast.makeText(getApplicationContext(), "Por favor inicia uma partida!", Toast.LENGTH_SHORT).show();

            return;
        }

        db.execSQL("INSERT INTO futebol VALUES('"+txt_valor1.getText()+"','"+txt_valor2.getText()+"','"+nomeTime1.getText()+"','"+nomeTime2.getText()+"','"+vermelho.getText()+"','"+amarelo.getText()+"');");

        Toast.makeText(getApplicationContext(), "Partida Salva", Toast.LENGTH_LONG).show();
    }

    public void listar (View view){
        Cursor c = db.rawQuery("SELECT * FROM futebol", null);

        if (c.getCount() == 0){
            Toast.makeText(getApplicationContext(), "Erro na pesquisa!", Toast.LENGTH_SHORT).show();
            return;
        }

        StringBuffer buffer = new StringBuffer();
        while (c.moveToFirst()) {

            buffer.append("Nome: "+c.getString(0)+"\n");
        }

        Toast.makeText(getApplicationContext(), "Resultado com sucesso!", Toast.LENGTH_SHORT);
    }
 }

The error message that appears when I click the button to call this Activity is "The AllSports Beta application has stopped." I click Ok and it returns to the application start screen. p>

If someone can help me I'll be very grateful ....