{ errno: 15040, msg: "", reason: "Unavailable", result: "Unavailable"}

{ errno: 15040, msg: "", reason: "Unavailable", result: "Unavailable"} 这个错误是什么原因导致的，一直打不开文件预览<img src="https://solution-community.wps.cn/uploads/post/5AZhx2XJYPs.png" alt=""/>