export contact: error: java.lang.illegalstateexception: j... #1051

On my Oneplus 8 Pro device, I have the contact saved in the Oneplus contact APP. Then I downloaded the simple contact APP is fine for using it.

But when I export the contact in this APP, it gives me an error:
error java.lang.illegalstateexception: j...

I know the birthday property can't be edited. （if I edit and click it, it will force stop the app, so I need to delete and reenter）. Which property do I still need to delete/edit for export to functional?