CalDav and Netatmo

I am running openhab 2.4 and have both CalDav (1.13) bindings and the Netatmo (2.4) binding installed. When Netatmo is up and running the CalDav bindings are automatically uninstalled. When I reinstall CalDav, Netatmo stops working. I could not find a way that both (or all three) bindings run simultaneously. Any ideas what to try and how to proceed?

The usual way. You should get a debug log and analyze it for clues and/or post it here…