Download .appx fail on Company portal

Hi,

I don't understand why i can't download my .appx from the Company Portal.

My remote device is recognized on the Administration console and linked to the user account. When i go to the Company Portal with it i can easely see my .appx and start download but it always fail.

Here a part of my ErrorLog ( without stack trace ) :

--- Exception Details ---
Microsoft.Management.Services.SelfServicePortal.Common.Portable.DataAccess.Exceptions.InvalidTokenException: Unauthorized, request URI: https://msub01.manage.microsoft.com/IWS/Devices

Thanks by advance