Pathologic was missing because of a .git folder inside.
[yaffs-website] / web / modules / contrib / simple_sitemap / simple_sitemap.links.menu.yml
1 simple_sitemap.settings:
2   title: 'Simple XML sitemap'
3   description: 'Configure and generate the XML sitemap, add custom links to it.'
4   parent: system.admin_config_search
5   route_name: simple_sitemap.settings