我正在尝试通过HTTP API连接到阿里巴巴ApsaraDB服务。我收到以下错误：
{"RequestId":"3292ADAB-F4F2-4E5C-BA0C-33208F779FC5","HostId":"rds.eu-central-1.aliyuncs.com","Code":"InternalError","Message":"The request processing has failed due to some unknown error, exception or failure."}
这似乎是内部服务器错误，但它持续了好几天。我想知道它是否与我发送的请求有关。这是请求网址：
https://rds.aliyuncs.com/?AccessKeyId=xxxxxxx&Action=DescribeDatabases&DBInstanceId=xxxxxx&Format=JSON&SignatureMethod=HMAC-SHA1&SignatureNonce=14415415-4291-4ce6-a83b-05c956df12cb&SignatureVersion=1.0&Timestamp=2018-06-18T07%3A44%3A12Z&Version=2014-08-15&Signature=Wf3V%2BRXDSKTARu0HCUzouHqYA%2FE%3D
我知道我做错了吗？