We are trying to setup a second language. We've gone through the steps and created a second website, we defined the base URL as @web/de for the second language (German).
The deeper sections are working fine (e.g. www.url.com/de/kontakt). However we can't get the second homepage to work on the URL www.url.com/de. We get a 403 access denied from nginx. We followed all the steps in the documentation (https://docs.craftcms.com/v3/localization.html), but can't get it to work. I assume we are missing something or forgot to do something.
The homepage is a single. In sections, we have left the URI blank for both, the default english site as well as the german site. The template is the same for both.
As a dev environment, we are using Local by Flywheel on a local workstation.