Error message when viewing

Jun 18, 2012 at 1:36 PM

Hello, I installed the webpart on the site I created an image library where I added images. But when I add the webpart and in the "List Url" I select the library, I get the error below. Thank you in advance for your help

 System.ArgumentException: Invalid field name. {9da97a8a-1da5-4a77-98d3-4bc10456e700} / Test-dev/dev/images1 at Microsoft.SharePoint.SPFieldCollection.GetFieldById (fieldID Guid, Boolean bThrowException) at Microsoft.SharePoint.SPListItem.get_Item (Guid fieldID) at SectorPoint.Products . AdRotator.AdRotatorWebPart.GetRandomImage () at SectorPoint.Products.AdRotator.AdRotatorWebPart.CreateChildControls ()