Missing Layout

We were unable to find a mapped layout component for the given key: sitemap

You can create a new file in the directory: 
~/components/fsxa/layouts/Sitemap.(tsx,vue)
File names should be defined in PascalCase. These are subsequently converted to snake_case. Folders are also mapped and separate the converted identifier with a dot.
The exception here is when an index file is defined. This leads to the following mapping:
~/components/fsxa/layouts/index.ts
import YourComponent from "~/path/to/your/component"

export default {
  ...
  "sitemap": YourComponent,
  ...
}
Your custom layout will receive the following properties:
{}