protected function getErrorFlashMessage()
    {
        if ($this->arguments->getValidationResults()->hasErrors()) {
            return false;
        }
        $errorMessage = 'An error occurred';
        if ($this->objectManager->getContext()->isDevelopment()) {
            $errorMessage .= ' while trying to call %1$s->%2$s()';
        }

        return new Error($errorMessage, null, [get_class($this), $this->actionMethodName]);
    }