Contact form issies

Wappler Version : 3.83
Operating System :win 10 pro
Server Model: php
Database Type:n/a
Hosting Type: shared

Expected behavior

submit form to e-mail

Actual behavior

What actually happens?

form fails with a message that required fields are missing but they are filled in?

How to reproduce

page address
Eichelbergers

fill in the form and submit

I only changed the api settings to try a different smtp account