TYPO3 Page not found error

rootPageId: 1
base: 'http://www.testsitethisis.nl/'
baseVariants: {  }
languages:
  -
    title: Dutch
    enabled: true
    languageId: '0'
    base: /
    typo3Language: nl
    locale: nl_NL.UTF-8
    iso-639-1: nl
    navigationTitle: Dutch
    hreflang: nl-NL
    direction: ''
    flag: nl
errorHandling: {  }
routes: {  }
routeEnhancers:
  PageTypeSuffix:
    type: PageType
    default: '/'
    index: ''
    map:
      '/': 0



<VirtualHost *:80>
DocumentRoot "/var/www/www.testsitethisis.nl/www"
ServerName www.testsitethisis.nl
ServerAlias testsitethisis.nl  www.testsitethisis.nl http://testsitethisis.nl
<Directory "/var/www/www.jollypizza.nl/www">
Options -Indexes +FollowSymLinks +MultiViews
AllowOverride all
</Directory>
</VirtualHost>

In TYPO3 9.5.9 Entering the site with url: www.testsitethisis.nl gives page not found error entering with testsitethisis.nl works fine. but <a href="/"> of with full domain name also giving the not found error?