Android Studio getWritableDatabase (); вызывает сбой моего приложения

Итак, я пытался выполнить запрос с помощью метода getData(), и всякий раз, когда я запускаю отладку, я вижу, что он вылетает со строкой dbHelper.getWritableDatabase().

Я думал, что создаю базу данных методом onCreate(), поэтому не уверен, что происходит.

Мой код внизу. Буду признателен за любую помощь!

public String getData(int firstSelection, int secondSelection, int thirdSelection,
                          int fourthSelection, int fifthSelection)
    {
        SQLiteDatabase db = dbHelper.getWritableDatabase();
        String firstSelectionStr, secondSelectionStr, thirdSelectionStr, fourthSelectionStr, fifthSelectionStr;

        firstSelectionStr = Integer.toString(firstSelection);
        secondSelectionStr = Integer.toString(secondSelection);
        thirdSelectionStr = Integer.toString(thirdSelection);
        fourthSelectionStr = Integer.toString(fourthSelection);
        fifthSelectionStr = Integer.toString(fifthSelection);


        String[] columns = {DBHelper.UID,DBHelper.CNAME};

        String selectQuery = "SELECT " + DBHelper.CNAME + " FROM "+ "CraftsAppDatabase" + " WHERE First_Attribute=? "
                + " AND Second_Attribute=? " + " AND Third_Attribute=? " + " AND Fourth_Attribute=? "
                + " AND Fifth_Attribute=? ";
        Cursor cursor=db.rawQuery(selectQuery, new String[] {firstSelectionStr, secondSelectionStr, thirdSelectionStr,
                            fourthSelectionStr, fifthSelectionStr});
        StringBuilder buffer = new StringBuilder();

        // Append every data together
        while (cursor.moveToNext())
        {

            String chosenItem = cursor.getString(cursor.getColumnIndex(DBHelper.CNAME));
            buffer.append(chosenItem + "/n");
        }
        return buffer.toString();
    }

static class DBHelper extends SQLiteOpenHelper
    {
        private static final String DATABASE_NAME = "CraftsAppDatabase";    // Database Name
        private static final String TABLE_NAME = "CraftTools";   // Table Name
        private static final String RESULT_TABLE = "Result";   // Table Name
        private static final int DATABASE_Version = 1;    // Database Version
        private static final String UID = "_id";     // Column I (Primary Key)
        private static final String CNAME = "Craft_Name";    //Column II
        private static final String RESULT = "Result_Name";    //Column II
        private static final String FIRST_ATTRIBUTE = "First_Attribute";    //Column III
        private static final String SECOND_ATTRIBUTE = "Second_Attribute";    //Column IV
        private static final String THIRD_ATTRIBUTE = "Third_Attribute";    //Column V
        private static final String FOURTH_ATTRIBUTE = "Fourth_Attribute";    //Column VI
        private static final String FIFTH_ATTRIBUTE = "Fifth_Attribute";    //Column VII
        private static final String CREATE_TABLE = "CREATE TABLE "+TABLE_NAME+
                " ("+UID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+CNAME+" VARCHAR(255)" +
                ", "+FIRST_ATTRIBUTE+" VARCHAR(255), "+SECOND_ATTRIBUTE+" VARCHAR(255)" +
                ", "+THIRD_ATTRIBUTE+" VARCHAR(255), "+FOURTH_ATTRIBUTE+" VARCHAR(255)" +
                ", "+FIFTH_ATTRIBUTE+" VARCHAR(255));";
        private static final String CREATE_OTHER_TABLE = "CREATE TABLE "+RESULT_TABLE+
                " ("+UID+" INTEGER PRIMARY KEY AUTOINCREMENT, "+RESULT+" VARCHAR(255));";
        private static final String DROP_TABLE  = "DROP TABLE IF EXISTS "+TABLE_NAME;
        private Context context;

        public DBHelper(Context context) {
            super(context, DATABASE_NAME, null, DATABASE_Version);
            this.context=context;
        }


        public void onCreate(SQLiteDatabase db) {
            db.execSQL(CREATE_TABLE);
            db.execSQL(CREATE_OTHER_TABLE);
            db.execSQL("INSERT INTO " + TABLE_NAME + "(CNAME, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
                    "VALUES ('Landscape Drawing', '1', '4','8', 'NONE', 'NONE')");
            db.execSQL("INSERT INTO " + TABLE_NAME + "(CNAME, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
                    "VALUES ('Popsicle Sticks House', '2', '3','NONE', 'NONE', 'NONE')");
            db.execSQL("INSERT INTO " + TABLE_NAME + "(CNAME, First_Attribute, Second_Attribute, Third_Attribute, Fourth_Attribute, Fifth_Attribute ) " +
                    "VALUES ('Sunset Painting', '4', '7','10', 'NONE', 'NONE')");

        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            db.execSQL(DROP_TABLE);
            onCreate(db);
            if (newVersion > oldVersion) {
                db.execSQL("ALTER TABLE CraftTools ADD COLUMN FIRST_ATTRIBUTE INTEGER DEFAULT 0");
                db.execSQL("ALTER TABLE CraftTools ADD COLUMN SECOND_ATTRIBUTE INTEGER DEFAULT 0");
                db.execSQL("ALTER TABLE CraftTools ADD COLUMN THIRD_ATTRIBUTE INTEGER DEFAULT 0");
                db.execSQL("ALTER TABLE CraftTools ADD COLUMN FOURTH_ATTRIBUTE INTEGER DEFAULT 0");
                db.execSQL("ALTER TABLE CraftTools ADD COLUMN FIFTH_ATTRIBUTE INTEGER DEFAULT 0");
            }
        }