Trying to get an XLS API downloand from

Trying to get an XLS API downloand from https://kf.kobotoolbox.org/api/v2/assets/?format=xls, but I am getting the error 500, what could be the issue? Its the 1st time this is happening

Welcome back to the community, @sector! Do you wish to download your XLSForm or data in XLS using the API?