Ouvrir le phone dialer

Bonjour,
j'ai mon application qui crash à chaque fois que j'ouvre le phone dialer.
CODE XML

Code:

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<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_content"
    android:fitsSystemWindows="true"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/main_frame"
        >
    </FrameLayout>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Appel Maintenant"
        android:layout_gravity="bottom|left"
        android:id="@+id/button_appel"/>
    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Chat avec agent"
        android:layout_gravity="bottom|right"
        android:id="@+id/button_product_chat"/>
 
 
 
 
 
    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="256dp"
        android:fitsSystemWindows="true">
 
 
        <android.support.design.widget.CollapsingToolbarLayout
            android:id="@+id/collapse_toolbar"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_scrollFlags="scroll|exitUntilCollapsed"
            android:fitsSystemWindows="true">
 
 
 
            <ImageView
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:scaleType="centerCrop"
                android:id="@+id/imageView4"
                android:fitsSystemWindows="true"
                app:layout_collapseMode="pin"/>
 
 
            <android.support.v7.widget.Toolbar
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:id="@+id/Mytolbar"
                app:layout_collapseMode="parallax"/>
 
 
            <ImageButton
                android:id="@+id/imageButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="15dp"
                android:layout_marginTop="500dp"
                android:layout_gravity="bottom|end"
 
 
 
                app:srcCompat="@drawable/ic_camera_alt_black_24dp" />
 
        </android.support.design.widget.CollapsingToolbarLayout>
 
    </android.support.design.widget.AppBarLayout>
 
 
    <android.support.v4.widget.NestedScrollView
        android:layout_gravity="fill_vertical"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
 
        <LinearLayout
            android:id="@+id/product_page"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical"
            android:paddingTop="24dp">
 
            <TextView
                android:id="@+id/product_content_title"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/imageView4"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:text="Canada"
                android:textColor="#000"
                android:textSize="22dp"
                android:textStyle="bold" />
 
 
            <TextView
                android:id="@+id/product_content_descri"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/product_content_title"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:text="Congo"/>
            <TextView
                android:id="@+id/product_price"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/product_content_title"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:text="Congo"/>
            <TextView
                android:id="@+id/product_nombreview"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/product_content_title"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:text="Congo"/>
            <TextView
                android:id="@+id/product_date"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/product_content_title"
                android:layout_marginLeft="10dp"
                android:layout_marginTop="5dp"
                android:text="Congo"/>
 
 
 
        </LinearLayout>
 
 
    </android.support.v4.widget.NestedScrollView>
 
 
 
</android.support.design.widget.CoordinatorLayout>

Code:

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package com.example.programmer.bmarketversion3;
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.support.annotation.NonNull;
import android.support.design.widget.BottomNavigationView;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.TextView;
 
 
 
public class Product_content2 extends AppCompatActivity {
 
 
 
    ImageView imageView;
    TextView txt_titre,txt_description,txt_prix,txt_view,txt_date;
    ImageButton imageButton;
    Button button;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_product_content2);
 
 
 
 
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setDisplayShowHomeEnabled(true);
        imageButton = (ImageButton)findViewById(R.id.imageButton);
        imageView= (ImageView)findViewById(R.id.imageView4);
        txt_titre = (TextView)findViewById(R.id.product_content_title);
        txt_description = (TextView)findViewById(R.id.product_content_descri);
        txt_prix = (TextView)findViewById(R.id.product_price);
        txt_view = (TextView)findViewById(R.id.product_nombreview);
        txt_date = (TextView)findViewById(R.id.product_date);
        imageView.setImageResource(getIntent().getIntExtra("image_id",00));
        txt_titre.setText("Titre : "+getIntent().getStringExtra("titre"));
        txt_description.setText("Description : "+getIntent().getStringExtra("description"));
        txt_prix.setText("Prix : "+getIntent().getStringExtra("prix"));
        txt_view.setText("Nombre de Vue : "+getIntent().getStringExtra("vue"));
        txt_date.setText("Date Postee : "+getIntent().getStringExtra("date"));
 
 
        //Button devrant ouvrir le call dialer
 
        button = (Button)findViewById(R.id.button_appel);
        button.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent = new Intent(Intent.ACTION_DIAL);
                intent.setData(Uri.parse("tel " + "0123456789"));
 
                if (ActivityCompat.checkSelfPermission(Product_content2.this,
                        Manifest.permission.CALL_PHONE) != PackageManager.PERMISSION_GRANTED) {
                    return;
                }
 
                startActivity(intent);
            }
        });
 
 
        imageButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Intent intent  = new Intent(Product_content2.this,PhotoVoirLesPhotos.class);
                startActivity(intent);
            }
        });
 
    }
 
 
 
 
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
 
        int id = item.getItemId();
 
        if (id== android.R.id.home){
            this.finish();
        }
        return super.onOptionsItemSelected(item);
    }
 
}

Pouvez-vous m'aider à résoudre ce problème, le Logcat ne me montre pas où est l'erreur