Problem with reviews – not displayed

Hi there,
We are having a problem displaying the reviews on this website: https://www.maria-adam.com/produkt/quitten-vollfruchtsaft/
As you can see it’s displaying the code and not the actual content.

Please be careful as this is a live website and even though we have backups there are new orders coming constantly, so a restore won’t be that easy.

Thank you in advance,
Best,
Thomas