Problem to connect to CRM 365 with SSRS

I have Visual Studio Data Tool 2015 and I installed the extension SSRS for dynamics CRM 365.

I created a connection with the following url :

https://<myOrganization>.crm4.dynamics.com

I create a fetchXML connection to server and when I try it : I have a popup with the following message in popup windows :

Credentials are already saved to configuration

Choose Yes to use caches credentials to sign in automatically or No to reset credentials.

When I click Yes

I have the followinf Popup 

Can't use cached credentials to sign in to Microsoft Dynamics 365. CRM could not find the cached organization.

Even if the user I use have right on CRM (and even he has the Administrative System Role).