Hi, I activated coming soon but it doesn't work.

Notice: Undefined property: Joomla\CMS\Document\HtmlDocument::$baseUrl in /var/www/developmentvm/htdocs/studiopanella/templates/shaper_wayne_corp/index.php on line 25

Joomla; 4.2.9 Template Shaper_wayne_corp: 1.3

can you help me please?

Thanks