新增订单时，出现提示如下，无法操作。

今天早上开始在新增订单时，出现提示如下，无法操作。
Unable to cast object of type 'Kingdee.BOS.Orm.DataEntity.DynamicObject' to type 'System.IConvertible'.
[{"operation":"SAL_SaleOrder.UpdateValue"}]
发生时间：08:25:45
错误来源： Kingdee.BOS.Web
错误信息：Unable to cast object of type 'Kingdee.BOS.Orm.DataEntity.DynamicObject' to type 'System.IConvertible'.
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调用堆栈：
at Kingdee.BOS.Web.DynamicForm.EntrySumActions.<>c__DisplayClassa.b__1(DynamicObject o)
at System.Linq.Enumerable.WhereSelectEnumerableIterator`2.MoveNext()
at System.Linq.Enumerable.Sum(IEnumerable`1 source)
at Kingdee.BOS.Web.DynamicForm.EntrySumActions.AddSumAction(IDynamicFormState formState)
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormState.GetActions()
at Kingdee.BOS.Web.DynamicForm.DynamicWebFormView.GetActions()
错误数据： System.Collections.ListDictionaryInternal