Failure to upload XLSForm

My internet connection is fine but the System has failed to upload an XLSForm to create a project. No error message is provided. Below is the link am using https://kf.kobotoolbox.org/#/forms.
I need your help.

Welcome to the community, @kasibante! Have you validated your XLSForm through this online validator? The online validator should help you identify syntax issues that are causing deploy issues.