Is anyone else seeing this error.  I am running version 03.03.08 of the events module.  It seems that the module will throw the following error.  If I login as admin, it begins working again, but after a period of time, the module fails again for the users.  Is there a solution for this?

ModuleId: 381
ModuleDefId: 100
FriendlyName: NJ Charger Group Events
ModuleControlSource: DesktopModules/Events/Events.ascx
AssemblyVersion: 04.05.03
PortalID: 0
PortalName: New Jersey Dodge Charger Club
UserID: -1
UserName:
ActiveTabID: 55
ActiveTabName: Events
RawURL: /Events/tabid/55/Default.aspx
AbsoluteURL: /Default.aspx
AbsoluteURLReferrer:
UserAgent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 9770c813-7f1d-4736-ad97-f6dbf30e1724
InnerException: Object reference not set to an instance of an object.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: DotNetNuke.Modules.Events.SelectCategory.get_SelectedCategory
StackTrace:
Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Modules.Events.SelectCategory.get_SelectedCategory() at DotNetNuke.Modules.Events.EventList.BindDataGrid() at DotNetNuke.Modules.Events.EventList.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---