System.ArgumentOutOfRangeException: Specified argument was out of the range of valid values.
at Microsoft.SharePoint.SPListItemCollection.get_Item(Int32 iIndex)
at SoftwerxEventDetailsWebPart.SoftwerxEventDetailsWebPart.CreateWebPart()System.ArgumentException: Value does not fall within the expected range.
at Microsoft.SharePoint.SPList.GetItemById(Int32 id, String strRootFolder, Boolean cacheRowsetAndId)
at Microsoft.SharePoint.SPList.GetItemById(Int32 id)
at SoftwerxAttendeeWebPart.SoftwerxAttendeeWebPart.CheckAuthorization()
Pages - EventDetails