Secure Sockets Layer (SSL) is not enabled on the specified SharePoint site. However, it is enabled on the Microsoft Dynamics ...

Secure Sockets Layer (SSL) is not enabled on the specified SharePoint site. However, it is enabled on the Microsoft Dynamics CRM Server. Because SSL is enabled only on the Microsoft Dynamics CRM Server, a security message will appear every time that a user tries to access the SharePoint documents. 
To avoid this, enable SSL on the SharePoint Server.