Android การเรียกใช้ database sqlite มากกว่า 2 activity แล้วมัน Error อ่ะครับ

final Database daba = new Database(this);
try {
					String resultServer = getJSONUrl(url, params1);
					JSONArray data = new JSONArray(resultServer);
					
					mArrList = new ArrayList<HashMap<String, String>>();
					HashMap<String, String> map;
					
					for(int i = 0; i < data.length(); i++){
		                JSONObject c = data.getJSONObject(i);
		    			
		    			String id1 = c.getString("id");
		    			String name1 = c.getString("name");
		    			String address1 = c.getString("address");
		    			String latitude1 = c.getString("latitude");
		    			String longtitude1 = c.getString("longtitude");
		    			
		    			daba.insertdb(id1,name1,address1,latitude1,longtitude1);  /// insert ไป sqlite
		                Log.i("Recieve"+i,id1+" "+name1); 
					}
				} catch (JSONException e) {
					// TODO Auto-generated catch block
					e.printStackTrace();
				}

public class Database extends SQLiteOpenHelper {
	
	private static final String DB_NAME = "mydatabase";
	private static final String TABLE_MEMBER = "schedule1";
    private static final int DB_VERSION = 1;
    SQLiteDatabase db;
    
	public Database(Context context) {
		super(context, DB_NAME, null, DB_VERSION);
		// TODO Auto-generated constructor stub
	}
	
	@Override
	public void onCreate(SQLiteDatabase db) {
		// TODO Auto-generated method stub
	
			db.execSQL("CREATE TABLE " + TABLE_MEMBER + "("
                + "idk INTEGER primary key AUTOINCREMENT,"
                + "id TEXT(100)," 
                + "name TEXT(100),"
                + "address TEXT(100),"
                + "latitude INTEGER,"
                + "longtitude INTEGER);");
			Log.d("CREATE TABLE","Create Table Successfully.");
	}

	public void insertdb(String id1,String name1,String address1,String latitude1,String longtitude1){
		 
		try{
			db = this.getWritableDatabase(); // Write Data
			
			db.execSQL("INSERT or replace INTO "+TABLE_MEMBER+" (idk,id,name,address,latitude,longtitude) " +
		                "VALUES(NULL,'"+id1+"','"+name1+"','"+address1+"','"+latitude1+"','"+longtitude1+"')");
		    db.close();
		 }catch(Exception e){e.printStackTrace();}
	}
	
	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
		// TODO Auto-generated method stub
		db.execSQL("DROP TABLE "+TABLE_MEMBER);
		// Re Create on method  onCreate
        onCreate(db);
	}
	
	public Cursor selectdata(){
		try{
			db = this.getReadableDatabase(); // Read Data
			String strSQL = "SELECT * FROM " + TABLE_MEMBER;
			Cursor cursor = db.rawQuery(strSQL, null);
			return cursor;
		}catch(Exception e){return null;}
	} 
}

public class Googlemap extends FragmentActivity {

	private GoogleMap myMap;

	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_googlemap);
		
		 SupportMapFragment mySupportMapFragment = 
                (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map_canvas);
         myMap = mySupportMapFragment.getMap();
         
 		 myMap.setMyLocationEnabled(true);

 		Database daba = new Database(this);
		Cursor locationCursor = daba.selectdata();
		int i=0;
 		do {
 	        String id = locationCursor.getString(locationCursor
 	                .getColumnIndex("id"));
 	        String name = locationCursor.getString(locationCursor
 	                .getColumnIndex("name"));
 	        Double latitude = (Double) locationCursor.getDouble(locationCursor
 	                .getColumnIndex("latitude"));
 	        Double longitude = (Double) locationCursor.getDouble(locationCursor
 	                .getColumnIndex("longtitude"));
 	       Log.i("Recieve"+i,idowner+" "+latitude);
 	       i++;

// 	        try{
// 	        	myMap.addMarker(new MarkerOptions()
// 	        	.position(new LatLng(latitude, longitude))
//                .title(id)
//                .snippet(name)
//                .icon(BitmapDescriptorFactory.defaultMarker()));
// 	        }catch(Exception e){e.printStackTrace();}

 		}while(locationCursor.moveToNext());
 	}
}

import android.content.Context;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;

import com.example.db.Dbselect;

import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;

public class Googlemap extends FragmentActivity {

	private GoogleMap map;
	private Dbselect db;
	private Context context;
	
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_googlemap);
		
		SupportMapFragment mySupportMapFragment = 
                (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map_canvas);
         map = mySupportMapFragment.getMap();
         
         context = this;
         db = new Dbselect(context);
         
         Cursor locationCursor = db.selectdata();
          int i=0;
        try{
        	do {
  	        String id = locationCursor.getString(locationCursor
  	                .getColumnIndex("id"));
  	        String name = locationCursor.getString(locationCursor
  	                .getColumnIndex("name"));
  	        Double latitude = (Double) locationCursor.getDouble(locationCursor
  	                .getColumnIndex("latitude"));
  	        Double longitude = (Double) locationCursor.getDouble(locationCursor
  	                .getColumnIndex("longtitude"));
  	        Log.i("test"+i,idowner+" "+latitude);
  	        	i++;
        	}while(locationCursor.moveToNext());
        }catch(Exception e){e.printStackTrace();}
	}
}

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;

public class Dbselect {
	private SQLiteDatabase db;
	
	public Dbselect(Context context){
		db = this.getReadableDatabase();
	}
	
	public Cursor selectdata(){
		try{
			String strSQL = "SELECT * FROM " + TABLE_MEMBER;
			Cursor cursor = db.rawQuery(strSQL, null);
			return cursor;
		}catch(Exception e){return null;}
	} 
}

import android.content.Context;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

public class Googlemap extends FragmentActivity {

	private GoogleMap map;
	private Dbselect db;
	private Context context;
	
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_googlemap);
		
		SupportMapFragment mySupportMapFragment = 
                (SupportMapFragment)getSupportFragmentManager().findFragmentById(R.id.map_canvas);
         map = mySupportMapFragment.getMap();
         
         map.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(13,100),8));     
         
         context = this;
         db = new Dbselect(context);
         
         Cursor locationCursor = db.selectdata();
          int i=0;
    
        	locationCursor.moveToFirst();
        	do {
        		String id = locationCursor.getString(locationCursor
  	                .getColumnIndex("id"));
        		String name = locationCursor.getString(locationCursor
  	                .getColumnIndex("name"));
        		Double latitude = (Double) locationCursor.getDouble(locationCursor
  	                .getColumnIndex("latitude"));
        		Double longitude = (Double) locationCursor.getDouble(locationCursor
  	                .getColumnIndex("longtitude"));
        		
//        		map.addMarker(new MarkerOptions()
//    		 		.position(new LatLng(latitude, longitude))
//    		 		.icon( BitmapDescriptorFactory.defaultMarker())
//    		 		.title(idowner)
//    		 		.snippet(name));
        		
        		Log.i("test"+i,id+" "+latitude);
  	        		i++;
        	}while(locationCursor.moveToNext());
	}
}