Backend\Core\Engine\Base\Action::getBackendModulePath PHP Method

    protected function getBackendModulePath()
    {
        if ($this->URL->getModule() == 'Core') {
            return BACKEND_PATH . '/' . $this->URL->getModule();
        } else {
            return BACKEND_MODULES_PATH . '/' . $this->URL->getModule();
        }
    }