Hey Andrew Butenko,
Here is the log file....
System.ServiceModel.FaultException`1[Microsoft.Xrm.Sdk.OrganizationServiceFault]: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Crm.Application.Controls.AppFormSelector.<>c.<ConfigureHeader>b__6_0(FormDescriptor fd) +0x0
at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext() +0x41
at System.Linq.Buffer`1..ctor(IEnumerable`1 source) +0x72
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source) +0xe
at Microsoft.Crm.Application.Controls.AppFormSelector.ConfigureHeader() +0x8c
at Microsoft.Crm.Application.Components.UI.CrmUIControlBase.ConfigureControlInternal() +0x25
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x49
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at Syst... (Fault Detail is equal to Exception details:
ErrorCode: 0x80040216
Message: System.Web.HttpUnhandledException: Exception of type 'System.Web.HttpUnhandledException' was thrown. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Crm.Application.Controls.AppFormSelector.<>c.<ConfigureHeader>b__6_0(FormDescriptor fd) +0x0
at System.Linq.Enumerable.WhereSelectArrayIterator`2.MoveNext() +0x41
at System.Linq.Buffer`1..ctor(IEnumerable`1 source) +0x72
at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source) +0xe
at Microsoft.Crm.Application.Controls.AppFormSelector.ConfigureHeader() +0x8c
at Microsoft.Crm.Application.Components.UI.CrmUIControlBase.ConfigureControlInternal() +0x25
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x49
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.Control.PreRenderRecursiveInternal() +0x7d
at System.Web.UI.C...).