Good Day,  i got the next error only with 1 user from 5k on local intranet when try to login, and i like to go deep with details but i need some help to do that.  for example more detail error o messages.. 

Many thanks in advance.

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AbsoluteURL:/Default.aspx

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:2a4c9a5c-10a3-4b66-a00f-3d5b57792132

AssemblyVersion:7.4.1

PortalId:0

UserId:-1

TabId:90

RawUrl:/Default.aspx?tabid=90&error=An%20unexpected%20error%20has%20occurred&content=0

Referrer:/Login?returnurl=%2f

UserAgent:Mozilla/5.0 (Windows NT 6.1; WOW64; Trident/7.0; rv:11.0) like Gecko

ExceptionHash:asCFxzh8BtQSwmvzevVILA==

Message:Object reference not set to an instance of an object.

StackTrace:

InnerMessage:Object reference not set to an instance of an object.

InnerStackTrace:

   at DotNetNuke.Entities.Users.UserController.UserLogin(Int32 portalId, UserInfo user, String portalName, String ip, Boolean createPersistentCookie) in c:\Projects\DNN_Platform_07.04.01_Source\DNN Platform\Library\Entities\Users\UserController.cs:line 1874
   at DotNetNuke.Framework.DefaultPage.OnInit(EventArgs e)
   at System.Web.UI.Control.InitRecursive(Control namingContainer)
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Source:

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:

Nombre del servidor: LOCALSDBS