Getting Error when we use Google Vertex Provider Module to AI provider

Problem/Motivation

Steps to reproduce (required for bugs, but not feature requests)

Firstly we add the Drupal AI module and then Add another module to provide free Open Api Provider
Google Vertex Provider
Link of module https://www.drupal.org/project/ai_provider_google_vertex

and Finally we add a API key from https://console.cloud.google.com/ this create api key and add in my drupal api key
and getting errors: on the click of add chat Modal.
for your reference Added Screenshots.