Cannot read properties of undefined

I am using Laravel 11, Vue3 and Inertiajs along with Typescript. I am trying to setup SSR

My ssr.ts is as follows

import { createInertiaApp } from '@inertiajs/vue3';
import createServer from '@inertiajs/vue3/server';
import { renderToString } from '@vue/server-renderer';
import { createSSRApp, DefineComponent, h } from 'vue';
import { ZiggyVue } from 'ziggy-js';
import { resolvePageComponent } from 'laravel-vite-plugin/inertia-helpers';

createServer(page =>
  createInertiaApp({
    page,
    render: renderToString,
    resolve: (name) =>
      resolvePageComponent(
        `./Pages/${name}.vue`,
        import.meta.glob<DefineComponent>('./Pages/**/*.vue'),
      ),
    setup({ App, props, plugin }) {
      return createSSRApp({
        render: () => h(App, props)
      }).use(plugin).use(ZiggyVue);
    }
  })
);

I followed the instructions etc and I run

npm run build

Which runs ok, then I try

Starting SSR server on port 13714...
Inertia SSR server started

And that runs ok, but when I refresh the site, I get the error

TypeError: Cannot read properties of undefined (reading 'welcome')

Which looks like its on the route...I have been looking around for ages and cannot seem to fix it.