{"Compressed part has inconsistent data length."}

Question

"{"Compressed part has inconsistent data length."}" this error occurred on that code.

 

private string GetValue(SpreadsheetDocument doc, Cell cell)
       {
           string value = cell.CellValue.InnerText;
           if (cell.DataType != null && cell.DataType.Value == CellValues.SharedString)
           {
               return doc.WorkbookPart.SharedStringTablePart.SharedStringTable.ChildElements.GetItem(int.Parse(value)).InnerText;
           }
           return value;
       }

 plz help me