protected function getInfoLink()
    {
        return Injector::inst()->create(
            GridFieldHtmlFragment::class,
            'buttons-before-right',
            DBField::create_field('HTMLFragment', ArrayData::create([
                'Link' => 'https://addons.silverstripe.org/add-ons/bringyourownideas/silverstripe-maintenance',
                'Label' => _t(__CLASS__ . '.MORE_INFORMATION', 'More information'),
            ])->renderWith(__CLASS__ . '/MoreInformationLink'))
        );
    }