После установки prestashop пользовательский модуль получает ошибку Fatal error: вызов неопределенного метода при нажатии меню

После установки пользовательского модуля prestashop выдается фатальная ошибка: вызовите неопределенный метод при нажатии на меню, созданное модулем
Неустранимая ошибка: вызов неопределенного метода querydr :: viewAccess () в D: \ xampp \ htdocs \ raffleV1.3 \ oknr9hexztcseff5 \ functions.php в строке 279

<?php
if (!defined('_PS_VERSION_')) exit;
class querydr extends Module
{

protected $config_form = false;
public $html;
public $tabName = 'renderForm';
public function __construct()
{

$this->name = 'querydr';
$this->tab = 'others';
$this->version = '1.0.0';
$this->author = 'xyz';
$this->need_instance = 1;
$this->module_key = 'f35950b303e7cbcda7fd8e56bb100d77121';
/**
* Set $this->bootstrap to true if your module is compliant with bootstrap (PrestaShop 1.6)
*/
$this->bootstrap = true;
parent::__construct();
$this->displayName = $this->l('Query DR');
$this->description = $this->l('Allow your Back Office to Query the transactions ');
$this->confirmUninstall = $this->l('You want to Uninstall Query DR ?.');
$this->_tabsArray = array(
'Querydr' => 'Query DR',
);

if (!Configuration::get('QUERYDR'))
$this->warning = $this->l('No name provided');
}
/**
* Don't forget to create update methods if needed:
* http://doc.prestashop.com/display/PS16/Enabling+the+Auto-Update
*/
public function install()
{
include(dirname(__FILE__).'/sql/install.php');

return parent::install()  &&
Configuration::updateValue('QUERYDR','Query Dr')
&& $this->_installTabs();
}

private function _installTabs()
{
$parentTab = new Tab();
foreach (Language::getLanguages() as $language) $parentTab->name[$language['id_lang']] = 'Query Dr';
$parentTab->class_name = 'Querydr';
$parentTab->module = $this->name;
$parentTab->id_parent = 0;
if (!$parentTab->save()) return false;
else {
$idTab = $parentTab->id;
//$idEn = Language::getIdByIso('en');
foreach ($this->_tabsArray as $tabKey => $name) {
$childTab = new Tab();
foreach (Language::getLanguages() as $language) $childTab->name[$language['id_lang']] = $name;

$childTab->class_name = $tabKey;
$childTab->module = $this->name;
$childTab->id_parent = $idTab;

if (!$childTab->save()) return false;
}
}
return true;
}public function uninstall()
{
include(dirname(__FILE__).'/sql/uninstall.php');
Configuration::deleteByName('QUERYDR');
Configuration::deleteByName('QUERYDR_MERCHANT_ID');
Configuration::deleteByName('QUERYDR_SECRET_KEY');
$this->_uninstallTabs();
if (!parent::uninstall())
return false;
return true;

}private function _uninstallTabs()
{
foreach ($this->_tabsArray as $tabKey => $name) {
$idTab = Tab::getIdFromClassName($tabKey);
if ($idTab != 0) {
$tab = new Tab($idTab);
$tab->delete();
}
}

$idTab = Tab::getIdFromClassName('QueryDr');
if ($idTab != 0) {
$tab = new Tab($idTab);
$tab->delete();
}
return true;
}public function getContent()
{
if (Tools::isSubmit('submitQueryDrModule')) {
Configuration::updateValue('QUERYDR_MERCHANT_ID', Tools::getValue('QUERYDR_MERCHANT_ID'));
Configuration::updateValue('QUERYDR_SECRET_KEY', Tools::getValue('QUERYDR_SECRET_KEY'));
$this->html .= $this->displayConfirmation($this->l('Settings Updated'));
$this->tabName = 'renderForm';
}

if ($this->tabName) {
$this->html .= '<script>$(document).ready(function(){$("#'.$this->tabName.'").addClass("active");$(".'.$this->tabName.'").parents(".nav-tabs > li").addClass("active");});</script>';
} else {
$this->html .= '<script>$(document).ready(function(){$("#renderForm").addClass("active");                    $(this).attr("href").indexOf("#renderForm").addClass("active");});</script>';
}
$this->html .= '<ul class="nav nav-tabs" role="tablist"><li ><a class="renderForm" href="#renderForm" role="tab" data-toggle="tab">SETTINGS</a></li></ul>';

$this->html .= '<div class="tab-content"><div class="tab-pane " id="renderForm">'.$this->renderForm_1_6().'</div></div>';
$this->html .='<style>div.flash.fail {color: #cd0a0a;background-color: #fef1ec;border: #cd0a0a 1px solid;                            padding: 0.5em;margin: 0 3px;margin-top: 22px;margin-bottom: 12px;text-align: center;border-radius: 2px 2px 2px 2px;}</style>';

return $this->html;
}

protected function renderForm_1_6()
{
$fields_form = array(
'form' => array(
'legend' => array(
'title' => $this->l('Settings'),
'icon' => 'icon-cogs',
),
'input' => array(
array(
'col' => 3,
'type' => 'text',
'desc' => $this->l('Your merchant ID ex: 201408191000001'),
'name' => 'QUERYDR_MERCHANT_ID',
'label' => $this->l('MERCHANT ID'),
),                     array(
'col' => 3,
'type' => 'text',
'desc' => $this->l('Your key provided by network international'),
'name' => 'QUERYDR_SECRET_KEY',
'label' => $this->l('SECRET KEY'),
)
),
'submit' => array(
'title' => $this->l('Save'),
),
)
);

$helper = new HelperForm();
$helper->show_toolbar = false;
$helper->table = $this->table;
$helper->module = $this;
$helper->default_form_language = $this->context->language->id;
$helper->allow_employee_form_lang = Configuration::get('PS_BO_ALLOW_EMPLOYEE_FORM_LANG', 0);
$helper->identifier = $this->identifier;
$helper->submit_action = 'submitQueryDrModule';
$helper->currentIndex = $this->context->link->getAdminLink('AdminModules', false)
.'&configure='.$this->name.'&tab_module='.$this->tab.'&module_name='.$this->name;
$helper->token = Tools::getAdminTokenLite('AdminModules');

$helper->tpl_vars = array(
'fields_value' => $this->getConfigFormValues(), /* Add values for your inputs */
'languages' => $this->context->controller->getLanguages(),
'id_language' => $this->context->language->id,
);

return $helper->generateForm(array(
$fields_form));
}

protected function getConfigFormValues()
{
return array(
'QUERYDR_MERCHANT_ID' => Configuration::get('QUERYDR_MERCHANT_ID'),
'QUERYDR_SECRET_KEY'  => Configuration::get('QUERYDR_SECRET_KEY'),
);
}

}

Моя ссылка на модуль здесь —

https://www.dropbox.com/s/juyhcu5zub8p9fi/querydr.zip?dl=0