public function render(): string
    {
        $templatePath = MaskUtility::getTemplatePath(
            $this->settingsService->get(),
            $this->arguments['data']
        );
        $content = '';

        if (!file_exists($templatePath) || !is_file($templatePath)) {
            $content = '<div class="alert alert-warning"><div class="media">
<div class="media-left"><span class="fa-stack fa-lg"><i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-exclamation fa-stack-1x"></i></span></div>
<div class="media-body"><h4 class="alert-title">' . LocalizationUtility::translate('tx_mask.content.htmlmissing',
                    'mask') . '</h4>      <p class="alert-message">' . $templatePath . '
				</p></div></div></div>';
        }
        return $content;
    }