Error Invalid key length help me please cal.com

[Stefan2706]

Hello,
I have installed cal.com on my NAS via Portainer. Everything worked fine. Unfortunately, I get an error message when I try to connect my Caldav calendar. Do you have any tips? The message is called Invalid key length. I have left all the keys as they are. What else can I do? I have reinstalled everything, but the error still comes back. The keys also have the correct length. I would be glad if someone could help me. Thanks in advance.

Best regards from Germany
Stefan

[Stefan2706]