Local documentation not working

Expected behavior I want to access the old docs. So I followed this guide: https://tw-elements.com/docs/standard/getting-started/local-installation/

Actual behavior When I try to run npm run docs:start, I get

Error: error building site: render: failed to render pages: render of "section" failed: "...\path\to\Tailwind-Elements\site\layouts\docs\list.html:2:68": execute of template failed: template: docs/list.html:2:68: executing "docs/list.html" – File is nil; wrap it in if or with: {{ with .File }}{{ .Dir }}{{ end }}
[watch:*hugo] npm run watch:hugo exited with code 1

Could someone please help me? I am a bit in a pickle since I have the legacy license for TWE and cannot upgrade because the checkout is not working (I have a code for free upgrading but the store is not working). And now I cannot access the old documentation because it is no longer provided on your website and I have already implemented features, that are now pro components with documentation behind the paywall. I must say I am a bit frustrateted because I feel locked out despite having payed. I wanted to save time using your framework not spending more :(