Android SQLite data is not being added

I am using the following code to add JSON Arrays to SQLite database :

QuestionORM Class :

public static void insertQuestion(Context c,JSONArray jarr,String search) throws JSONException {
    DatabaseWrapper databaseWrapper = new DatabaseWrapper(c);
    if(isDatabaseOpened())
    {
        myDataBase = databaseWrapper.getWritableDatabase();
        ContentValues values = postToContentValues2(jarr);
        values.put(QuestionORM.COLUMN_SEARCH,search);
        long questionId = myDataBase.insert(QuestionORM.TABLE_NAME, "null", values);
        Log.e(TAG, "Inserted new Question with ID: " + questionId);
        myDataBase.close();
    }
}

private static ContentValues postToContentValues2(JSONArray jsonArray) throws JSONException {
    ContentValues values = new ContentValues();
    for(int i=0;i<jsonArray.length();i++)
    {
        JSONObject job1 = jsonArray.getJSONObject(i);
        if(job1!=null)
        {
            JSONObject job2 = job1.getJSONObject("owner");
            values.put(QuestionORM.COLUMN_ID, job1.getString("question_id"));
            values.put(QuestionORM.COLUMN_TITLE,job1.getString("title"));
            values.put(QuestionORM.COLUMN_AUTHOR,job2.getString("display_name"));
            values.put(QuestionORM.COLUMN_VOTES,job1.getString("score"));
        }
    }
    return values;
}

public static boolean isDatabaseOpened() {
    if (myDataBase == null) {
        return false;
    }
    return myDataBase.isOpen();
}

This is used like this in another activity :

        QuestionORM.insertQuestion(MainActivity.this,mJSONArr,url);

However, the log is never displayed, and the database is empty. I don't get any errors in my logcat either.

What is wrong ? How do I fix this ?

Thanks !