DWC in Wordpress: Internal Server Error

Hi,

I have created Dynamic Web Content. I can see the content when I use the Mautic Preview URL.
When I embed it in WP using this shortcode [mautic type=“content” id=“1”], then I get an internal server error message in the Chrome console. THe content is not displayed.

I tried differnt DWC including and excluding forms.
Forms do get embedded correctly
I have CORS setting in Mautic and in .htaccess of WP.

Due to the Internal Server Error 500 Mautic doesn’t get to the stage to report anything in the log file.
Mautic 2.15.1

Any help appreciated.

mvg
Arthur

When I add this URL https://mautic.mydomain.biz/dwc (exactly this) in Chrome on my Windows laptop I receive an internal server error 500. Could somebody confirm that this ought to work?