I know the versio of out drb is old we are in replacment process,

But curently our onpremmis crm server de soap connection stop workin when i visit the url i get this : domain.domain.local:444/.../Organization.svc

An error has occurred.

Try this action again. If the problem continues, check the Microsoft Dynamics CRM Community for solutions or contact your organization's Microsoft Dynamics CRM Administrator. Finally, you can contact Microsoft Support.

System.NullReferenceException: Object reference not set to an instance of an object. at Microsoft.Crm.MainApplication.Application_Error(Object sender, EventArgs eventArguments)

Any sugestions