خطای no such table را چگونه رفع کنم؟اینم کدهای برنامه

package com.example.addapplication;


import android.content.ContentValues;

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




import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;



class DBAdapter extends SQLiteOpenHelper {
    private Context main_context;
    private static String databasePath;
    private static String database_NAME = "Databases.ldb";
    private static int database_VERSION = 2;
    private static String TABLE;

    static {
        TABLE = "table1";
    }


    // public static ArrayList<Heros> herosArrayList = new ArrayList<>();
    public static SQLiteDatabase database;

    public DBAdapter(Context context) {
        super(context, database_NAME, null, database_VERSION);

        main_context = context;


        databasePath = context.getDatabasePath(database_NAME).getPath();
    }


    @Override
    public void onCreate(SQLiteDatabase database) {
        /*do nothing*/
    }

    @Override
    public void onUpgrade(SQLiteDatabase database, int oldVersion, int newVersion) {
        /*do nothing*/
    }


    private boolean dbEXists() {
        File f = new File(databasePath);
        if (f.exists())
            return true;
        else
            return false;

    }


    private boolean copydb() throws IOException {
        {
            try {
                FileOutputStream out = new FileOutputStream(databasePath);
                InputStream in = main_context.getAssets().open(database_NAME);

                byte[] buffer = new byte[1024];
                int ch;

                while ((ch = in.read(buffer)) > 0) {
                    out.write(buffer, 0, ch);
                }

                out.flush();
                out.close();
                in.close();

                return true;

            } catch (Exception e) {
                return false;
            }

        }
    }


        public void open () throws IOException {

            if (dbEXists()) {
                try {
                    File temp = new File(databasePath);
                    database = SQLiteDatabase.openDatabase(

                            temp.getAbsolutePath(), null, SQLiteDatabase.OPEN_READWRITE
                    );
                } catch (Exception e) {

                }
            } else {
                if (copydb())
                    open();


            }
        }

                public boolean Thabtename(String name,  String lastname, String nameCycle, String StartofClass,String EndofClass, String startCycle,  String EndCycle,String Image) {
                    database = this.getWritableDatabase();
                    database = this.getReadableDatabase();

                    ContentValues result = new ContentValues();
                    result.put("Name", name);
                    result.put("Last", lastname);
                    result.put("NameCycle", nameCycle);
                    result.put("StartofClass", StartofClass);
                    result.put("EndofClass", EndofClass);
                    result.put("StartCycle", startCycle);
                    result.put("EndCycle", EndCycle);
                    result.put("CodeStudent", Image);


                    long insert = database.insert(TABLE, null, result);
                    if(insert==-1) {
                        return true;
                    } else{
                        return false;
                    }

                }


        public synchronized void close ()
        {
            database.close();
        }





















  //  public Cursor getAllcontact () {

        //    database = SQLiteDatabase.openOrCreateDatabase(MainActivity.Direction + "/Databases.ldb.accdb", null);
         //   Cursor cursor = database.rawQuery("SELECT * FROM Table1", null);


        //    while (cursor.moveToNext()) {
            //    int id = cursor.getInt(cursor.getColumnIndex("id"));
            //    String name = cursor.getString(cursor.getColumnIndex("name"));
            //    String lastname = cursor.getString(cursor.getColumnIndex("lastname"));
             //   String nameCycle = cursor.getString(cursor.getColumnIndex("namecycle"));
            //    String ClassStart = cursor.getString(cursor.getColumnIndex("StartofClass"));
            //    String EndofClass = cursor.getString(cursor.getColumnIndex("EndofClass"));
             //   String startCycle = cursor.getString(cursor.getColumnIndex("startCycle"));
           //     String EndCycle = cursor.getString(cursor.getColumnIndex("EndCycle"));
           //     String Image = cursor.getString(cursor.getColumnIndex("Image"));

            //    Heros heros = new Heros(id, name, lastname, nameCycle, ClassStart, EndofClass, startCycle, EndCycle, Image);

                //herosArrayList.add(heros);
            }
          //  return cursor;