Yii2 PHP Excel Error getAttributeLabel() on null - php

Question

I have to implementing export excel using moonland PHP excel extension. When I implemented it, it throws the error:
"Call to a member function getAttributeLabel() on null".
Code
$dataProvider = new \app\models\Details;
\moonland\phpexcel\Excel::widget([
'models' => $dataProvider,
'mode' => 'export', //default value as 'export'
'columns' => ['id','name','address'], //without header working, because the header will be get label from attribute label.
//'header' => ['id' => 'Header Column 1','name' => 'Header Column 2', 'address' => 'Header Column 3'],
]);
My model
class Details extends \yii\db\ActiveRecord
{
/**
* #inheritdoc
*/
public static function tableName()
{
return 'details';
}
/**
* #inheritdoc
*/
public function rules()
{
return [
[['id'], 'required'],
[['id'], 'integer'],
[['name', 'address'], 'string', 'max' => 50],
];
}
/**
* #inheritdoc
*/
public function attributeLabels()
{
/* return [
'id' => Yii::t('app', 'ID'),
'name' => Yii::t('app', 'Name'),
'address' => Yii::t('app', 'Address'),
];*/
return [
'id' => 'ID',
'name' => 'Name',
'address' =>'Address',
];
}
}
Table
May i know what is the problem in that, thanks in advance for your idea