Cannot download deployed form on KoBoCollect App

Hi there,
I don’t manage to download a newly deployed form on the KoBoCollect app. The document appears on the app but when I try download it (“get selected”), the download always fails. The below error message pops up. What can I do to solve this?

Regards,
Lucie

Welcome to the community, @lu_fro! Would you mind validating your XLSForm through this online validator to see if there are any syntax issues?