Please enter the url from the Bilara app or the url from the GitHub unpublished branch. It will look something like this:

https://bilara.suttacentral.net/translation/an3.35_translation-es-maggatr

or

https://github.com/suttacentral/bilara-data/blob/unpublished/translation/es/maggatr/sutta/an/an3/an3.35_translation-es-maggatr.json