Some time around 1am last night our production site generated three separate exception errors. Because the site is inaccessible I checked dbo.EventLog to see if anything was recorded and nothing. There have been no attempts to upgrade and no changes to IIS. If anyone has any insight, I would appreciate it. 

Regards,

Kyle H.

DNN Ver 5.2.3
IIS 6
SQL 208

Server Error in '/' Application.
An item with the same key has already been added.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.ArgumentException: An item with the same key has already been added.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:


[ArgumentException: An item with the same key has already been added.]
System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +51
System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add) +7470188
System.Collections.ObjectModel.KeyedCollection`2.AddKey(TKey key, TItem item) +93
System.Collections.ObjectModel.KeyedCollection`2.InsertItem(Int32 index, TItem item) +38
System.Collections.ObjectModel.Collection`1.Add(T item) +117
DotNetNuke.ComponentModel.SimpleContainer.RegisterComponentInstance(String name, Type contractType, Object instance) +135
DotNetNuke.ComponentModel.AbstractContainer.RegisterComponentInstance(Object instance) +82
DotNetNuke.ComponentModel.ComponentFactory.RegisterComponentInstance(Object instance) +77
DotNetNuke.Security.Membership.AspNetMembershipProvider..ctor() +193

[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) +0
System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache) +86
System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache) +230
System.Activator.CreateInstance(Type type, Boolean nonPublic) +67
System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +1051
System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) +111
System.RuntimeType.InvokeMember(String name, BindingFlags bindingFlags, Binder binder, Object target, Object[] providedArgs, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParams) +7658775
System.Type.InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, CultureInfo culture) +36
DotNetNuke.Framework.Reflection.CreateInstance(Type Type) +27
DotNetNuke.ComponentModel.SingletonComponentBuilder.CreateInstance() +14
DotNetNuke.ComponentModel.SingletonComponentBuilder.BuildComponent() +16
DotNetNuke.ComponentModel.SimpleContainer.GetComponent(IComponentBuilder builder) +18
DotNetNuke.ComponentModel.SimpleContainer.GetComponent(Type contractType) +81
DotNetNuke.ComponentModel.AbstractContainer.GetComponent() +55
DotNetNuke.ComponentModel.ComponentFactory.GetComponent() +63
DotNetNuke.Security.Membership.MembershipProvider.Instance() +9
DotNetNuke.Entities.Users.UserController..cctor() +5

[TypeInitializationException: The type initializer for 'DotNetNuke.Entities.Users.UserController' threw an exception.]
DotNetNuke.Entities.Users.UserController.GetCurrentUserInfo() +0
DotNetNuke.Services.Exceptions.BasePortalException.InitializePrivateVariables() +278


Version Information: Microsoft .NET Framework Version:2.0.50727.3655; ASP.NET Version:2.0.50727.3658