no just wanted to add some references, seems i clicked the wrong button to post my comments…
Crash after Android update 7 -> 8
I updated my Note 8 from Android 7.0 to 8.0 today and now as I open the DAVdroid app it is simply crashing right on the startup. Any solution to get it working again?
Please have a look at https://www.davdroid.com/faq/davdroid-not-working-after-update/
Have you tried to uninstall DAVdroid and then install it again?