The most likely causes of instance failure are human error, service failure, or file corruption.

最有可能导致实例故障的情况包括人为错误、服务失败、或者文件损坏。

youdao

Simple human error is by far the largest cause of system failure.

单纯的人为失误是系统故障的最主要原因。

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The author analyses the relationship between human error and accident and discusses the influence of management failure on system safety as well as the effect of human error identification.

分析了人为失误与事故发生的关系，讨论了管理失误对系统安全的影响；

youdao

February 1997: At least 11 people die after a collision caused by human error and a signalling failure north of Aswan.

BBC: Egypt's history of train disasters

The authority blamed the failure to advertise the meeting on human error.

BBC: Caerphilly council chief suspended in pay row inquiry

The council blamed the failure to advertise the pay scales meeting on human error.

BBC: Police review Caerphilly council chief's unlawful rise