You might be seeing something like this when viewing one of our Divi modules:
This message is only a notification that the preview of the Divi module in the admin does not currently work. Rest assured that it has no effect on the public display of the module when viewing it in the frontend. Everything will still work correctly.
Since this is not an urgent issue the plan to fix this message is not in the near future as it requires another programming language to fix.
For now, an alternative solution to view your changes is to open another tab in your browser and paste the public URL of the page so every time you make changes on the backend you can just refresh the new tab to see your changes.