Hi, we are running a shop with version 1.4. It's up for 1.5 year but since yesterday we are getting following error on product save:
[InvalidOperationException: Operation is not valid due to the current state of the object.] System.Web.HttpRequest.FillInFormCollection() +532 System.Web.HttpRequest.get_Form() +84 System.Web.HttpRequest.get_HasForm() +107 System.Web.UI.Page.GetCollectionBasedOnMethod(Boolean dontReturnNull) +75 System.Web.UI.Page.DeterminePostBackMode() +139 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +304