title: TYPO3 9.5.2 Slug: Multilanguage: Page not found 404 exception, if no translation of page exists
body: <p>I have a website with two languages e.g de and en. De is my default language with no path prefix. En, the second language, has /en/ as prefix in the url. Now when I switch to the en language, the menu item links have /en/ in the url, which is fine. But when I click on a menu item, which is not explicit translated in the backend, then I get a 404 error. I cannot say this behavier is wrong, because there isn't a page with this slug path before I create one. But what should I do? Create a translation for each page, which is not helpful, if there are already hundreds of pages. Is there no fallback (not content fallback, page fallback)?</p>
  
  <p>site config</p>
  
  <pre><code>rootPageId: 2
  base: 'http://some-domain.de/'
  baseVariants: {  }
  languages:
    -
      title: 'Meine tolle Webseite'
      enabled: true
      languageId: '0'
      base: /
      typo3Language: de
      locale: de_DE.UTF-8
      iso-639-1: de
      navigationTitle: ''
      hreflang: ''
      direction: ''
      flag: de
    -
      title: 'Andere Sprache'
      enabled: true
      languageId: '1'
      base: /en/
      typo3Language: en
      locale: en_US.UTF-8
      iso-639-1: en
      navigationTitle: ''
      hreflang: ''
      direction: ''
      fallbackType: fallback
      fallbacks: '0'
      flag: en
  errorHandling: {  }
  routes: {  }
  routeEnhancers:
    PageTypeSuffix:
      type: PageType
      default: .html
      map:
        .html: 0
  </code></pre>