短信发送失败，并提示一下信息是什么原因？

mgcc
18-09-6

短信发送失败:The request timed out on the server. Typically this indicates the request is too expensive.(The request timed out on the server. Typically this indicates the request is too expensive.)

xiaoxu
18-09-6

你好，麻烦您提供一下 AppId。请问使用哪个 SDK 发送的短信？能否提供一下完整的日志。