Although there is no debug info, it seems that Nextcloud returns an error when DAVx5 requests the events/contacts. Is there any indication that this could be a DAVx5 problem?
after installing Android 6.01 on Samsung S6 edge DAVdroid doesn’t sync anymore. Although deleted and reinstalled twice, same error: ‘Derzeit treten Synchronisationsprobleme auf. Vorgang wird vorerst zurückgestellt’. Debug-Info shows only config but no errors .
Please provide logs and debug info, together with more information (server, server logs, …) and steps to reproduce.
i recognized a few updates in the meantime and now it works…