Hi, 
  
While upgrading from version v1.1.8.0 to v2.4.0.2 many / all our charts will be broken. 
The error we occured is: 
 WebPart can't be loaded. Please contact your site administrator or write to Collabion Support.
Column 'CategoriesSortColumn' does not exist. It may have been deleted by another user. at Microsoft.SharePoint.SPFieldCollection.GetField(String strName, Boolean bThrowException) at Microsoft.SharePoint.SPListItem.GetValue(String strName, Boolean bThrowIfValueMissing, Boolean bThrowIfFieldMissing) at Collabion.Charts.DAL.Managers.ChartConfigurationManager.b__10_0(SPListItem item) at Collabion.Charts.DAL.Managers.ChartConfigurationManager.<>c__DisplayClass10_1.b__2(SPListItem i) at Collabion.Charts.DAL.ListHelper.Get[T](SPWeb web, String listTitle, SPQuery query, Func`2 converter) at Collabion.Charts.DAL.Managers.DataManager.Get[T](SPQuery query, Func`2 converter) at Collabion.Charts.CollabionChartWebPart.PreRenderWebPart() at Collabion.Common.SharePoint.Base.WebParts.WebPartBase.OnPreRender(EventArgs e) Method: Microsoft.SharePoint.SPField GetField(System.String, Boolean) File: Line: 0 
Hide... 
For example export for old (upgraded v1.1.8.0 -> v2.4.0.2) chart 
and for same new (created with v2.4.0.2) chart 
available in attach
 
We have many charts and re creation all of them by WebPart Editor is unacceptable
Is available any solutions for this issue?
  
New_chart.xml 
Old_chart.xml