Validation errors on block.block.ai_chatbot

Is the block is created using the placeBlockInAdminTheme config action?

    block.block.ai_chatbot:
      placeBlockInAdminTheme:
        region:
          gin: content
          claro: content
        default_region: content
        plugin: ai_deepchat_block
        settings:
          id: ai_deepchat_block
          label: 'Drupal Agent Chatbot'
          label_display: '0'
          provider: ai_chatbot
          ai_assistant: drupal_agent_assistant
          bot_name: 'Drupal Agent'
          stream: 0
          default_avatar: /core/misc/druplicon.png
          first_message: 'Hello! How can I assist you today?'
          show_structured_results: 1

ai_chatbot is a submodule of the ai module. It has no config entities, nor does the ai module.

If I manually create the block and export the config, it looks like this. Most of the additional settings are the default values.

langcode: en
status: true
dependencies:
  module:
    - ai_chatbot
  theme:
    - gin
id: ai_chatbot
theme: gin
region: content
weight: 0
provider: null
plugin: ai_deepchat_block
settings:
  id: ai_deepchat_block
  label: 'Drupal Agent Chatbot'
  label_display: visible
  provider: ai_chatbot
  ai_assistant: drupal_agent_assistant
  bot_name: 'Drupal Agent'
  bot_image: /core/misc/druplicon.png
  use_username: 1
  default_username: User
  use_avatar: 1
  default_avatar: /core/misc/favicon.ico
  first_message: 'Hello! How can I assist you today?'
  stream: 0
  toggle_state: remember
  width: 400px
  height: 500px
  placement: bottom-right
  show_structured_results: false
  show_copy_icon: true
  collapse_minimal: false
  style_file: 'module:ai_chatbot:bard.yml'
  verbose_mode: false
visibility: {  }

I've seen this bug before; you'll get it if you don't have a theme installed. What is the situation you're running this on? Is it an existing site? Can you give me some steps to reproduce this from scratch?

This was a new site spinup on 11.2 for an internal demo. It's been buggy, so it could be something unrelated.

But my unusual thing here is that I only have Gin as the front end and admin theme.

Steps to replicate

drush si minimal -y
composer require drupal/gin drupal/drupal_cms_ai
drush uli
Visit /admin/appearance
Set Gin as the default theme
Set Default theme as the Administration theme
Save
drush recipe ../recipes/drupal_cms_ai