Event Viewer: Snap-in errors

This is what happens when I try to open an event in event viewer:






at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck)
at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean fillCache)
at System.RuntimeType.CreateInstanceImpl(Boolean publicOnly, Boolean skipVisibilityChecks, Boolean fillCache)
at System.Activator.CreateInstance(Type type, Boolean nonPublic)
at Microsoft.ManagementConsole.FormView.InternalInitialize()
at Microsoft.ManagementConsole.View.HandleInitializationRequest(IRequestStatus requestStatus)
at Microsoft.ManagementConsole.View.ProcessRequest(Request request)
at Microsoft.ManagementConsole.ViewMessageClient.ProcessRequest(Request request)
at Microsoft.ManagementConsole.Internal.IMessageClient.ProcessRequest(Request request)
at Microsoft.ManagementConsole.Executive.RequestStatus.BeginRequest(IMessageClient messageClient, RequestInfo requestInfo)
at Microsoft.ManagementConsole.Executive.SnapInRequestOperation.ProcessRequest()
at Microsoft.ManagementConsole.Executive.Operation.OnThreadTransfer(SimpleOperationCallback callback)