您的列表中似乎有一个必须通过工作流程提供的字段。工作流失败，因为必填字段为空。检查您的字段并制作确保您没有将未使用的字段设置为必填字段。

It seems you have a mandatory field in your list that you are not providing via the workflow. The workflow is failing because the mandatory field is null. Review your fields and make sure you have no unused fields set as mandatory.

谢谢，

Victor