[Help] iOS Contact fields not shown in nextcloud web interface

I use nextcloud with the apps files, contacts, and calendar. My main devices are OSX and iOS devices.
The webinterface for contacts shows only a few fields, but the Information on iOS and OSX devices still there.

Any Idee what can I do that the fields Show up on the contacts app ?

Thx.

Hi! Could you elaborate a bit? What is shown in the app?
Do you see some contacts at least?