@Gruen – I had the same problem with cyngn on zuk z1; solved by clearing fdroid cache & data, then updating fdroid depositories. then reinstalling latest version of davdroid. hope this helps.
DAVdroid crashes when using wrong values in the SIP address field
DAVdroid crashes when using wrong values in the SIP address field in the contacts app.
Steps to reproduce:
- Edit a contact
- Add “internet call” field
- enter “Skype: blahblah” as value
- Force a sync
DAVdroid crashes unexpectedly.
For Skype please use the appropriate field for “Instant messenger” or “Chat”. There is a label named Skype there.