I just addressed this to Posteo support.
Waiting for their feedback.
HTTP 500 Internal Error
for a few days now, I constantly receive a notification on my Android device, that DavX ran into error HTTP 500 while syncing my calendar (The title of the notification is “Calendar”)
Some appointments synchronize, some don’t.
Is this a DavX issue or is this an issue with mailbox.org?
Link to my log: https://paste.fedoraproject.org/paste/ek42ZeP72j9jXlD1CnvSCA (Error is mention in line 50 and following)
Android Version: 8.0
DavX Version: 188.8.131.52-ose (280)
The server return’s an internal server error, probably because it couldn’t process one of its events. Please contact the server support.