Exception     : Object Graph cannot be null.Parameter name: graph
App Error Log : ControllerAppTier.GetCollection->BenAdminControllerAppTier.GetData->CollectionManager.GetCollection->CollectionManager.GetEmployeeCurrencyDateRuleValues->Serialization.SerializeBinary
Employee ID   : 817
Action Name   : Login
Model         : System.Web.Mvc.HandleErrorInfo
Controller    : Login
Web Error Log :    at WORKTERRA.BenAdmin.BenAdminControllerWebTier.GetCollection(ObjectType I_objectType, Hashtable I_criteria, String I_AdditionalCriteriaString, Object I_context, Boolean I_mode, Boolean I_needCollection) in d:\WT\branches\LB\Web\ControllerWebTier\ControllerWebTier\BenAdminControllerWebTier.cs:line 181
   at WORKTERRA.SharedFunctionWebTier.AddSessionValueForCurrencyAndDate(Int64 EmployeeID, Int64 UserID, UserRoles RoleID) in d:\WT\branches\LB\Web\SharedFunctionWebTier\SharedFunctionWebTier\CommonClasses\SharedFunctionWebTier.cs:line 2206
   at WORKTERRA.Shared.Models.UsersModels.CheckLoggedinUser(Users& objUsers) in d:\WT\branches\LB\Web\Web Projects\WORKTERRA\Models\Login\Login\UsersModels.cs:line 216
   at WORKTERRA.Shared.Models.UsersModels.AuthenticateUser() in d:\WT\branches\LB\Web\Web Projects\WORKTERRA\Models\Login\Login\UsersModels.cs:line 67
   at WORKTERRA.Shared.Controllers.LoginController.Login(UsersModels objUsersModels) in d:\WT\branches\LB\Web\Web Projects\WORKTERRA\Controllers\Login\Login\LoginController.cs:line 183
   at lambda_method(Closure , ControllerBase , Object[] )
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12()
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation)
   at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
   at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)