There is a typo in the UI, "Applictions" is missing an _a_.  This seems to have been fixed in the repo here: https://github.com/solid-contrib/catalog/commit/4cb5e6d91fe2d94eb49a86c6b7718a19824dc108#diff-29c7b4a1584ea9cefd8b9b40b4ebe3d286091b33d192d09d7ecc545beb6d42d3L157 Maybe the site has not been updated?