Good evening Reinhard and welcome back!
Thank you for reaching out to us.
We are sorry to hear about the issues you have been dealing while using our plugins with Divi.
I would love to help you with this topic.
I am personally a huge fan of Divi, so this comes as a surprise to me.
As a first troubleshooting step, could you please provide us with your complete system information in a private reply using the instructions found in the following link?
https://theeventscalendar.com/knowledgebase/sharing-sys-info/
Secondly, could you tell me which version of Divi you are using ?
Finally, could you provide me with a bit more information on what is not working exactly ? Are you getting an error message ? Perhaps a screenshot would help.
Best regards,
Geoff B.